Deus Ex: Human Revolution

Deus Ex: Human Revolution Achievements

Foxiest of the Hounds

Complete Deus Ex: Human Revolution without setting off any alarms.   

This is the achievement where you'll need to make sure you don't make any mistakes when trying to avoid being caught. First off, I recommend you save often to save any heart ache. Save once you get to a new area, save when you get past a tricky spot even if you're still trying to pass it, save before hacking etc.

Next up you'll want some certain Augmentations to help make this a smoother ride. Most are listed in the Roadmap above, so please refer to that. The main one that will save you from getting spotted is the Skin Augmentation - Cloaking System. With this and some quick recharge you can bypass a whole area with getting spotted or worrying about movement timing. 

Now onto the things you don't want to do:

  • Never make a guard, camera or turret turn Hostile. If this happens, reload a last save. Having anything Alerted or Suspicious is fine.
  • When hacking a turret, don't make it turn against anyone. This will count as kills and sound alarms.
  • When you knockout anyone, hide the bodies. The last thing you want is a guard or camera spotting them and setting off an alarm.
  • Save before you hack. If you mess it up, they will lock down and may set off an alarm.
  • Some areas in the game it'll automatically go into a Hostile state. This is is fine so don't worry. It normally happens after a cutscene and that you're in the surrounding area, so it's part of the story. But be warned, you'll actually start these bits without actually being seen, the AI just know you're about! Just get out of the area without actually being spotted and you should be good to go.
Rate this achievementAverage Rating (Based on 19 votes)
User Comments
Comment #1 by Verdinial
Tuesday, June 21, 2011 @ 10:25:38 PM

Lol nice reference there, I'll be getting this achievement no matter how difficult, simply because it's a Metal Gear reference.

Comment #2 by Pakhair
Tuesday, June 21, 2011 @ 11:56:16 PM

I guess it might come along pacifist

Comment #3 by Pakhair
Tuesday, June 21, 2011 @ 11:57:37 PM

Oh and Nice Catch it's definitely a reference to Metal Gear

Comment #4 by Shikamaru FTW
Wednesday, June 22, 2011 @ 12:06:20 AM

Haha i see what u did there

Comment #5 by OMGmyFACE
Wednesday, June 22, 2011 @ 12:21:31 AM

Pacifist will be so much easier than this one. You can set off an alarm and tranq someone who comes after you but this? Yeah, this'll be the hard one.

Comment #6 by Josh Benton
Wednesday, June 22, 2011 @ 02:51:54 AM

Love MGS reference, very cool.

Comment #7 by Qwertybob
Wednesday, June 22, 2011 @ 03:12:37 AM

I love the way that even after the first guy said it was a Metal Gear reference, everyone else has to confirm it, just so they can tell people that they understand the reference

Comment #8 by kiedis1984
Wednesday, June 22, 2011 @ 03:36:37 AM

Love this achievement. Might take a few playthroughs to get the feel for it though. Although with Deus Ex, that might not be a bad thing.

Comment #9 by NAVSPECWEP
Wednesday, June 22, 2011 @ 01:01:29 PM

This game releases on my B-day....anyone wanna buy it for me?

Comment #10 by Bongo Bongo347
Wednesday, June 22, 2011 @ 03:59:33 PM

Took me a sec to get it

Comment #11 by ShavenOtter13
Saturday, July 09, 2011 @ 05:08:49 PM

bring it on!!!!!

Comment #12 by LK Tien
Monday, July 25, 2011 @ 10:41:16 PM

alarmed state or actual alarms that scream "YOU FAULLLLLLLLLLLLLLLL"?

Comment #13 by Alpha1Niner
Tuesday, July 26, 2011 @ 06:32:19 AM

I've been looking for a job for the past two months. Problem solved. Staying unemployed. Getting this achievement

Comment #14 by DEG23
Monday, August 01, 2011 @ 01:48:36 AM

I like how the developers go on about all the different play styles, eg combat, social etc but in order to get the achievement you are most likely forced to play stealth

Comment #15 by lizard9979
Thursday, August 04, 2011 @ 05:56:19 AM

@13 with the McCain emblem on your profile and the unemployment comment. I spit my bastard. LOLOLOLOLOL

Looking forward to this achievement.

Comment #16 by NattyBomb
Thursday, August 11, 2011 @ 05:38:25 AM

Oh hahha you sly dogs I see now! very sneaky sis. (refering to achievement
name BTW)

Comment #17 by AngEalsh
Friday, August 12, 2011 @ 12:28:26 PM

Nice achievement, Looking forward to unlocking it.

Comment #18 by eggchrist
Sunday, August 14, 2011 @ 07:24:43 PM

This should be interesting!!

Comment #19 by The Bum-Mobile
Monday, August 15, 2011 @ 04:22:20 PM

Curious what's considered alarm. Like, an actual alarm, or if it's just if the guards are openly engaging you.

Comment #20 by Azulgrave
Sunday, August 21, 2011 @ 04:48:54 AM

Enemies Can be "Alarmed" So long as the radar doesnt show HOSTILE or an alarm is actually triggered.

Comment #21 by Alexbeav
Monday, August 22, 2011 @ 04:02:11 AM

There are a few augmentations I recommend you get if you're going for this :

-The radar augmentation (lvl 2) allows you to pick up enemies on radar w/o having
to actually 'see' them or hear them.
-Obviously, the stealth enhancer which shows you the vision cones a-la MGS style.
-Invisibility comes in handy, seeing as contrary to the previous games, you can
cloak past *anything* in this game : cameras, lasers and robots.
Goes hand-in-hand with
-Feet augmentation : the stealth walking/running helps, and you must use it with
the invisibility aug if you truly don't want to attract attention.

And remember : there's a vent almost in every area that helps you slide past
large groups.

p.s. get the tranq rifle, even if you play lethal, it's very rare to find in the
game actu

Comment #22 by The Bum-Mobile
Monday, August 22, 2011 @ 09:22:41 PM

@21, thanks for the tips. Sounds like there are some lethal combinations for the augmentations.

Comment #23 by ascentis pl
Tuesday, August 23, 2011 @ 01:55:58 PM

hard achieve

Comment #24 by Alexbeav
Tuesday, August 23, 2011 @ 06:43:23 PM

Got it today along with pacifist. Easier than Ghost by a ton (will get that on
next play through). Remembers, Turrets and mechs go straight to hostile,
alarming enemies and insta-failing this achievement. Cameras on the other hand,
first start beeping to "SUSPICIOUS" (or sth) and then go to "ALARM"

Comment #25 by Styxer1008
Wednesday, August 24, 2011 @ 06:06:45 PM

Does the first like.. level I guess count? Cause if so the part right before you end of it can suck a dick..

Comment #26 by Styxer1008
Wednesday, August 24, 2011 @ 06:09:32 PM

And I'm talking about before you get all robotic

Comment #27 by Trombonafide
Thursday, August 25, 2011 @ 01:48:14 PM

I'd been wondering that too. Does the prologue count towards Pacifist and Foxiest of the Hounds?

Comment #28 by SpiderShark
Thursday, August 25, 2011 @ 05:23:57 PM

So im going to assume its safe to alert the guards, as long as they do not set off an actual alarm?

Comment #29 by PaulH888
Thursday, August 25, 2011 @ 05:35:55 PM

I'm going to replay the game on easy after i've done it on hard but i have a question about this one, if i trigger a hostile state on the easy playthrough, then load a previous save game and try that bit again, will i still be able to get the cheevo?

Comment #30 by FOXHOUND MGS4
Friday, August 26, 2011 @ 05:56:44 AM

Yay!!! I've been waiting years for an achievement that refers to my gamertag lol

Comment #31 by Hoitech117
Friday, August 26, 2011 @ 08:10:22 AM

I dont understand this achievement, like how you guys have all been saying, because, in most situations, I usually pwn the majority of the enemies in the area, but the last guard becomes hostile and then i finish him off. will i still get the cheevo?

Comment #32 by Lord_Statn
Friday, August 26, 2011 @ 11:13:36 AM

This is easier than it sounds. You CAN enter full on combat, as long as no ALARM goes off! If you don't get the "Smooth Operator" bonus at the end off a mission, it can also mean there was no alarm to set off to begin with. And enemies can become "alarmed" or even "hostile" without you losing this achievement.

Comment #33 by Ace5129
Friday, August 26, 2011 @ 03:27:31 PM

so can enemies become hostile and you can still get this achievement or not?

Comment #34 by Verdinial
Friday, August 26, 2011 @ 05:51:08 PM

@33 - Hostile, no. But if they are just alarmed it won't matter. I'm not sure about cameras though, because I did a mission just now without getting spotted, but I didn't get the bonus called Smooth Operator or the Ghost bonus. I hope it was just the mmission.

Comment #35 by Shepard Commander 11
Saturday, August 27, 2011 @ 04:04:51 AM

Ok guys to put all the speculations down I can confirm that you can get this achievement even though enemies are in hostile mode. You just can't set off any alarms can be clearly heard e.g. security alarms or turret alarms. I just got this achievement, the pacifist, and the legend on one play through. Pretty fun. If you have any more questions feel free to ask. Hope this helps

Comment #36 by stratzvyda
Saturday, August 27, 2011 @ 06:26:45 AM

I can verify @35. Also, keep in mind there are many situations where alarm are scripted, and some of these wont give you smooth operator while others will. I was positive i didn't get it because of this, was very surprised when it popped. Kind of annoying since no statistics screen to check how many alarms triggered.

Comment #37 by Pyro Riot87
Saturday, August 27, 2011 @ 03:31:30 PM

When you set off a mine does that count against you as well?

Comment #38 by Hoitech117
Sunday, August 28, 2011 @ 03:58:36 AM

do story related events count towards this, like when you get trapped by zhao in her penthouse and u have to escape, and in picus communications when the trap goes off and you realise that you found another hologram of eliza.

Comment #39 by Zaft
Sunday, August 28, 2011 @ 04:24:45 AM

@35: Do you happen to know if failing a hack will cause this? I've noticed that if I fail a hack and enemies are nearby, they will go into alarmed status.

I was thinking not, since it's not technically a real alarm...but I'd like to get confirmation.

Comment #40 by OneBgBdArtemis
Sunday, August 28, 2011 @ 09:11:58 AM

#39, failing a hack does set off an alarm, I have heard one in the background only to be confirmed a few seconds later when I saw enemies running after me. Just make sure if you're down to 2 seconds or less on a hack and not gonna make it, to just press the Y button and disconnect....

Comment #41 by sparda500
Sunday, August 28, 2011 @ 11:44:59 AM

@24 really? i got ghost right at start after you do your first takedown by going above everyone and in the vent. And I'm guessing you can just save before hand and reload if you set off an alarm?

Comment #42 by Chrish90
Sunday, August 28, 2011 @ 01:09:40 PM

What about the part where zhao hides in the panic room or the part where you wait for the giant elevator thing?

Comment #43 by Verdinial
Sunday, August 28, 2011 @ 01:19:17 PM

I knew I fucked it up at the start, god dammit that was the only thing I had a bad feeling about. One alarm, I wanted my next playthrough to be guns blazing one, too.

Comment #44 by DirgDiggler83
Sunday, August 28, 2011 @ 03:14:24 PM

does it still work if you re spawn, former saved states or do you have to trigger none alarm?

Comment #45 by Shepard Commander 11
Sunday, August 28, 2011 @ 03:37:18 PM

@38 Story driven plots that put you in situations like your first encounter with Zhao do not count against you. @39 It depends on if you get hacking on a level where an alarm can be sounded i suggest if you know you are going to fail a hack just disconnect or reload a save.

Comment #46 by Naberios
Sunday, August 28, 2011 @ 04:21:32 PM

How about outside of missions? For example, *SPOILER* If you let Zeke live, he meets you in the alley. After you get the info, can you attack them(turning them hostile) and still get this achievement?

Comment #47 by phlip65
Sunday, August 28, 2011 @ 04:54:56 PM

hey, if you don't talk to taggard before you confront sandoval, you can still avoid turning hostile. just activate stealth right after the cut scene and sneak behind him and take him down

Comment #48 by Naberios
Sunday, August 28, 2011 @ 05:06:21 PM

At #47

At what point in the game are you talking about? I haven't had the opportunity to talk to Taggard, but am at the point where Sandaval is in the alley right now. I wasn't able to save the hostages in the first mission(because I was exploring the Sarif building instead of making my way to the helipad right away, grr) and now there's a jackass in the alley bragging about being the one that killed them. I can knock him out, but that turns the other 2 hostile. Which, if that counts as an alarm, blows my achievement, but if I let them chase me the police kill them, which makes me happy and keeps my pacifist achievement in play....

Comment #49 by Understocked
Sunday, August 28, 2011 @ 08:40:01 PM

Things need to know
1) Do not get spotted by more than one enemy at the same time, if seen, deal with them quickly (tricky on hard)

2)Hack security hub will turn off the cam and bots, but if failing the hack will trigger instant alarm, sometimes there will be palm-recognition device for you to hack, this will disable the alarm.

3)Getting spotted in the final boss fight does not count.

4)Alarm means: the sound, or enemy calling reinforcement / bots etc, 'alarmed' or 'hostile' do not necessarily mean alarm.

Comment #50 by Gottschkopf
Monday, August 29, 2011 @ 01:27:23 PM

Apparently, it doesnt count if you reload after failing... I did this and neither got this cheevo nor pacifist... Too bad, another run to do... And a third for the cheevo to throw this diamond guy from the houses... :(

Comment #51 by harry77
Tuesday, August 30, 2011 @ 01:52:11 PM

Early on I blagged my way into the morgue but because of how I handled the conversation the officer Wayne confronts me at my apartment in Detroit 2, goes hostile and tries shooting me..I'm wondering if that will effect the achievement? I've used my stun gun on him before the cutscene and dragged him to my apartment for now and hopefully my no kills achievement should be safe to.

Comment #52 by Understocked
Wednesday, August 31, 2011 @ 01:27:07 AM


Don't worry about Hass, do whatever to him matters not to this achievement. Because you are only spotted and became hostile by only one guy (civies do not count).

I got him to shot me and I punch the s*** out of him still get the cheevo.

Hope it works out for everyone.

Comment #53 by Th3Ninj4
Wednesday, August 31, 2011 @ 04:17:37 AM

I just Completed Pacifist,Foxiest of the Hounds on my 1st run through, Sadly i did not play it on "Give me Deux Ex" i am currently missing 4 achievements.

I will post in the guide as some helpful hints towards getting both achievements, and maybe post a Video Playthrough,
P.S Saving is crucial as if you mess up alot, reload and start again

Comment #54 by elliottheduck12
Wednesday, August 31, 2011 @ 06:51:51 AM

Wait, so it definetly doesn't ruin the cheevo if guards and or 'crazies' (towards the end) become hostile?

Comment #55 by Tiz712
Wednesday, August 31, 2011 @ 08:03:32 PM

i love mgs reference

Comment #56 by Dr Rocco
Thursday, September 01, 2011 @ 12:00:23 PM

#45 - so ANY story plot that forces you to KILL (like when you become a 'hitman' and have to plant the gun in the rival gangs weapon stash you can still get the achievement?

Comment #57 by Styxer1008
Thursday, September 01, 2011 @ 02:20:01 PM

@50: Yeah it does, at least I can 100% confrim it does for Pacifist, because I'd get bored/annoyed, save, and go on a killing spree. Then when I either died or got bored of killing I'd reload that save before I started, and I still got Pacifist at the end of the game.

Comment #58 by Devon012
Thursday, September 01, 2011 @ 05:08:49 PM

I'm still confused about this achievement. It has nothing to do with enemies becoming hostile right? It only has to do with setting of actual alarms?

Comment #59 by zictheslick
Thursday, September 01, 2011 @ 07:34:26 PM

just beat the game, and got neither Pacifist or Foxiest of the I was very careful with who I killed, and never let any cameras see me or any guys trigger the alarm. Any ideas why no cheevos?

Comment #60 by Beast Rider42
Friday, September 02, 2011 @ 10:54:23 AM

u cant let any guy go hostile

Comment #61 by Beast Rider42
Friday, September 02, 2011 @ 10:57:55 AM

what u supposed too do at the end with all those crazies

Comment #62 by Beast Rider42
Friday, September 02, 2011 @ 02:01:49 PM

proluge dose counts towards achievment so yes u have to nbe stealth all the wat too the end

Comment #63 by Rapt0raz
Friday, September 02, 2011 @ 05:33:51 PM

There seem to be mixed views on how you can get this. Are you allowed to be spotted when there isn't an alarm. For example near the end there are loads of nutters, can engage them because there isn't an alarm to be set off?

Comment #64 by ChokeOnMyBullet
Friday, September 02, 2011 @ 06:07:54 PM

Just to clear up for anyone confused.

What is an Alarm

1: When a soldier sounds one by placing his hand on one.
2: A security camera going RED
3: Some failed hacks (if there's no loud ass alarm, go on)

What isn't an alarm

1: Turrets or robots shooting
2: Alarmed, hostile, Suspiscious
3: The last level enemies spotting you

Comment #65 by ChokeOnMyBullet
Friday, September 02, 2011 @ 06:20:32 PM

@63 If your reffering to very first level then it doesn't count if they see you, because there is no alarm for them to set off. That also goes for Sarif Manufacturing level, D-Row and Panchea

Comment #66 by elliottheduck12
Saturday, September 03, 2011 @ 05:54:16 AM

I was just wondering if someone could help me on a problem I faced whilst doing a mission on Deus Ex. As by accident I got caught by a camera whilst stuning someone and it turned hostile. Because of this I 'attempted' to re-load my file save again because an alarm was sounded but not knowing I clicked on 'save file' insted of 'load' and I saved the bad attempt over my pacafist/foxiest of the hounds walkthrough. So I was just wondering if I was to revert to my previous 'AUTOSAVE' before I was caught on the same mission would the game still allow me to obtain the 'Foxiest of the hounds' achievement even though it's an autosave (i'm thinking that as the game saves itself it may still register the alarm before it was activated at that point in which it was), or would it only not count as a reg

Comment #67 by elliottheduck12
Saturday, September 03, 2011 @ 05:56:30 AM

*CARRIED ON FROM BOTTOM*registered alarm if it was a manual save? thank you :)

Comment #68 by Ziras
Saturday, September 03, 2011 @ 06:31:22 PM

@64 false. I failed 2 alarms in sidequests that DID NOT set off any "alarms". I didn't trip a single alarm for the entire game otherwise, yet I still did not get this. Pretty pissed because I wanted to do a fuckall run, but I want it to be the first game I platinum on my PS3.

Comment #69 by xV3LOCITYx
Sunday, September 04, 2011 @ 04:49:57 AM

Need help people in one of the earlier missions I was shot by a turret on a hostile state it was the only thing in the hallway I then completed that mission and I still got the ghost challenge I was wondering if I can still get that achievement let me know people I'm anxious thanks

Comment #70 by voidreaper21
Sunday, September 04, 2011 @ 10:06:03 AM

not allowed to get caught by the terrorists at the start either :/

Comment #71 by voidreaper21
Sunday, September 04, 2011 @ 10:07:37 AM

a quick 350G when you finish the game is to set it on hardest difficulty, dont kill anyone and you wont need to cause you'll not be spotted by enything (trooper,pacifist,foxiest of all hound, legend)

Comment #72 by voidreaper21
Sunday, September 04, 2011 @ 10:10:39 AM

@69 no it doesnt count, ghost is awarded by not getting spotted by people for the achievement you cant get spotted at all. (not sure if you can get spotted by the mad people in the final boss fight(not sure if that one is counted as a boss fight))

Comment #73 by FATAL VISI0N
Sunday, September 04, 2011 @ 02:02:28 PM

Can you save your game and if you set off the alarm, just go back to that save and start again?? Thanks!

Comment #74 by MrE26
Sunday, September 04, 2011 @ 04:27:44 PM

Just got this & Pacifist on my 1st playthrough on DX difficulty.

Some points to clear up: Failed hacks, camera's going hostile, tripped lasers & enemies hitting an alarm panel will cause you to fail this.

Turrets & robots can spot you, but as long as they don't alert other enemies you should be fine. I had a couple turn hostile on my playthrough.

Enemies going hostile doesn't affect the achievement, provided they don't run off & trip an alarm. I had a lot of battles with groups of hostile enemies & still got it.

If you mess up a hack or set off an alarm, reload & try again. (Auto or manual saves, it doesn't matter which.)

Comment #75 by Zachary Logan
Sunday, September 04, 2011 @ 07:05:25 PM

I am so pissed. I just beat the game on hard with pacifist doing everything but saving malik, and it didn't give me this god damn achievement. I swear to the grave that I didn't set off anything. Sadness. !@#k !!!

Comment #76 by elliottheduck12
Monday, September 05, 2011 @ 03:33:15 AM

@74 awwwwwwwwwwww thanks man, your a god! :D

Comment #77 by xV3LOCITYx
Monday, September 05, 2011 @ 09:55:32 AM

Yeah thank you @74

Comment #78 by cyrus1269
Monday, September 05, 2011 @ 10:19:40 AM

Comment #79 by Ellusion
Monday, September 05, 2011 @ 10:46:51 AM

Also note there's a severe glitch at the beginning, Sarif Manufacturing Plant. If you cannot get Ghost on the first objective (reaching the plant, also the easiest way to get this) by knocking out the first guard and sneaking through the vents/roof, you are not likely to get it and it may have ruined your game. Happened to me at the start, and no matter what I did I couldn't get Ghost after several attempts going back even to the prologue. Deleted everything including savegames, cleared the cache and tried again. Unlocked on the first attempt doing exactly the same as before.

Comment #80 by Maybach Matt
Monday, September 05, 2011 @ 03:04:00 PM

I literally hacked every panel and rarely had hostiles on me (if I did, the panels were already hacked) and still never got it. No camera or robot spotted me neither, so I don't know. I got robbed, lol. I made sure I was very careful. I don't feel like doing a third playthrough as other games are releasing that I already have pre-ordered, so I'm stuck having all the achievements but this and the xp books. Not too which ones I missed with the XP books. I'm pretty sure I sweeped every room in the game. Ah well.

Comment #81 by Valkynaz
Monday, September 05, 2011 @ 06:37:48 PM

I can confirm that turrets DO lock out the achievement. Had to do a 3rd playthru with only that aspect changed in my playing style and BAM! Achievement.

Some tips:
-Save before every new area ventured and every electronic device hacked.
-Guards in the "alarmed" state don't lock out the achievement, nor do guards in "hostile" if you neutralize them fast enough before they hit the alarm pad.
-The Cloaking System skin augment is a Godsend. Upgrade it fully early on if you want an easy time slipping past heavily guarded areas.
-Avoid surveillance cameras and turrets at all costs; they trigger an alarm that disables Foxiest of Hounds.
-There are two places where you can destroy Box Guards without penalty: one part is where Malik gets shot down when you enter Shanghai again, the other is

Comment #82 by Valkynaz
Monday, September 05, 2011 @ 06:39:45 PM


...when you have to escape Tai Young Medical after Zhao presses her panic button (the last room where two BGs are wandering up and down the hangar area). I avoided the latter just to be on the safe side; with a fully upgraded Hacking augmentation you can just go straight up to the control tower and disable them obscurely from a security hub.

Happy hunting, fags~

Comment #83 by ProShooter88
Monday, September 05, 2011 @ 08:51:44 PM

I'm not impressed I pursued this cheevo from the very start, everytime my radar went to hostile
I reverted back to a previous save to make sure I got ghost and smooth operator at the end ov each
I even made sure I was undetected durin the final boss fight and I didn't get it when I finished
My this cuz when it says “alarms“ that also means that they can't be in an alarmed
State? Or maybe reloadin to a previous save doesn't work. Not impressed now I've gotta try
Pacifist, Legend and foxiest of hounds. During one whole playthrough to save havin to go through the entire
Game another 3 times..wish me luck lol

Comment #84 by ProShooter88
Monday, September 05, 2011 @ 09:00:14 PM

I'm wondering does the prologue count cuz I remember I shot emenies and they turned hostile? If yes then I know what I did
wrong lol

Comment #85 by ProShooter88
Monday, September 05, 2011 @ 09:12:09 PM

Ok my bad I jus re read comments above and everythin that is considered an alarm and what isn't
I reloaded a save everytime and damn no fuckin cheevo.

Comment #86 by Naberios
Tuesday, September 06, 2011 @ 09:51:16 PM

I was actually surprised at how forgiving the game was in what it considered "tripping an alarm". I got it on my first playthrough. I also saved religiously and reloaded when I felt something happened that would cancel this out.

@ProShooter88 ~ You may want to save your "Legend" playthrough as a stand alone go, and try for the "Pacifist" and "Foxiest of Hounds" together playing on the easiest setting. Being able to kill and not worry about setting off alarms will likely make the "Legend" playthrough a bit more bareable.... just a suggestion. Good Luck!

Comment #87 by Tdrummer89
Wednesday, September 07, 2011 @ 01:05:30 AM

I was freaking out about this achievement, but I got it as well as Legend and Pacifist, all on the same playthrough. Definitely possible. SAVE OFTEN. and if you mess up, you CAN RELOAD SAVES. Hit me up if you have questions.

Comment #88 by Milosuperspesh
Wednesday, September 07, 2011 @ 08:43:23 AM

@59 if you kill people thats not a pacifist....

don't use head shots with any non lethal gun, check the body for z's also when using take down tap the the b button if he gets his blades out reload you save,

i'm still a way off this but getting there slowly !

also tranq rifle at a distance with the target tracker works best at distance cos i'm finding it's quite noisy

Comment #89 by CyborgRoe
Saturday, September 10, 2011 @ 12:27:11 AM

I wouldn't suggest sprint/run silently augs. They're a waste of Praxis and you'll hardly ever use them. Instead take Cloaking System and max out your batteries.

I also suggest: Punch through walls- There are certain areas, especially at the Roller Hideout where this is very useful. Along with Landing System you can skip a large part of the Row.

Move Heavy Objects-There are more than a few ducts being blocked by large boxes. Using ducts to move around will save time and avoid a lot of baddies.

Reflex Booster-It isn't often, but bring able to knock out two baddies at once can be helpful

Hacking Capture- I would max this out. Shutting off cams and turrets just makes things easier. Tip: You can knock out turrets and cams briefly with the stun gun.

Hacking: Stealth- Helps get thr

Comment #90 by CyborgRoe
Saturday, September 10, 2011 @ 12:32:40 AM

Hacking: Stealth- Helps get thrrough the capture easier.

I don't use the tranq gun, takes up too much inventory space and as long as you know the territory then you'll be fine. However, if you're stuck and want to grab one:

Detroit Gas Station Gun Runner sells one

Gun Runner in Hung Hua Hotel sells one

Tai Yong Medical next to a e-book, you'll need the Landing System to get to it or drop boxes down the holw which will require move heavy.

Comment #91 by KungFoo83
Saturday, September 10, 2011 @ 05:25:19 AM

This is incredibly frustrating. I've just gone through and got Legend and Pacifist, but not this. I KNOW that every time an enemy even turned hostile (apart from the last level ) I'd reload my last save. If a camera even said suspicious, I reloaded my save. I definitely did not fail a hack, that's for sure, and even if an enemy spotted a knocked out guard that I hadn't hidden, I reloaded my save. and it HASN'T popped at the end. I don't know if I can be bothered to invest the time into a third playthrough to try again when I know I'm certain nothing went off this time through

Comment #92 by aljochua
Saturday, September 10, 2011 @ 10:23:22 PM

got a question. after talking to Zhao in the Penthouse the alarm went off. i got the smooth operator and ghost bonus does this mean i am still on track for the this cheevo?

Comment #93 by CyphT3hThrilla
Sunday, September 11, 2011 @ 12:28:01 AM

@91 Ditto. My first playthrough I wasn't all that careful, didnt get Fox Hound or Pacifist. Second playthrough I did everything perfect. Remained undetected, never failed a hack, and checked every body to make sure they were "zzz" and not dead, then hid them all. Got Pacifist, but not Fox. I guess I just shelf the game for a few months then try again.

Comment #94 by MegsonGrove
Sunday, September 11, 2011 @ 06:24:07 PM

Just got this! Along with not killing anyone :) as others have said, reload saves if you are unsure about anything and don't do any side quests that you don't have to do! Also, in the last level the crazies can go hostile and attack you and that doesn't set off an alarm as this happened to me and i still got the achievement, in case anyone was wondering

Comment #95 by Super Aw3some
Monday, September 12, 2011 @ 07:11:15 AM


I saved a few gas grenades for the Panchea section just to be safe.

I failed this on the first play through as I kept messing up the hacks.

Comment #96 by KHannibal
Monday, September 12, 2011 @ 05:37:54 PM

Three playthrough, three different difficulty level, never killed anybody or got spotted, no one got alarmed nor suspicious, and this achievement never unlocked... That's really frustrating.

Comment #97 by Naberios
Tuesday, September 13, 2011 @ 02:46:09 AM

@92 That's a scripted alarm state. So yes, if you make it through without them seeing you, then you get "Ghost" and your achievement is safe.

Comment #98 by aljochua
Tuesday, September 13, 2011 @ 08:48:01 PM

thanks Naberios. hoping to get this achievement soon.

Comment #99 by Delete
Wednesday, September 14, 2011 @ 04:35:10 AM

Just got this and the other two 100's. Not hard at all, just stay invisible using your cloak all the time. Also, every single time you get the chance to go to a limb clinic, buy those protein cans (the 250 credit big one's) because they will definitely come in handy. I'm not sure if this matters but even for the last mission, i remained undetected. Some parts the alarm will go off obviously like the part before you fight the third boss where you put the virus in....There is one other part where some people could be messing up....when you fight the 2 mechs...there are 2 security cameras in that room in the top left and right hand corners. Not sure if they count but they thing is to cloak ur way to the underneath portion where they can't see or shoot you and just exploit that..

Comment #100 by Delete
Wednesday, September 14, 2011 @ 04:41:14 AM

And for the last boss to make it the easiest it can be.....if you happen to have a heavy rifle,punch holes through walls aug, and at least on jar of proteins......all you have to do is put the code in the machine down below (it's gonna be facing her and the code is 2012). That disables cloak and run to one of the walls and punch a hole through it.....simply wait there til the glass breaks, the electricity won't hurt you there. A few guards might make there way there so just knock them out....after a few minutes glass will break.....just to be safe.....cloak and heavy machine gun her butt. By the way if anyone notices, this is my secondary profile, so my achievements don't match I know....just get a little paranoid puttin info on the internet these days :P

Comment #101 by H3AD5HOT SNIPER
Thursday, September 15, 2011 @ 04:36:58 PM

Now this is an achievement that I should be able to get, but then again its going to be a pain. If anyone has anything that may help please let me know.

Comment #102 by H3AD5HOT SNIPER
Thursday, September 15, 2011 @ 04:41:47 PM

And by the way does anyone know how to update their account because im a bit new so please help me with that my whole gamer card is completely different.

Comment #103 by KungFoo83
Saturday, September 17, 2011 @ 03:25:11 AM

@99 with the mechs, I had full batteries and cloaked all the way up to the top, hacking the turrets to disable the mechs without getting spotted once by the cameras or bots. That's what's frustrating me. It's not a short game. If it was about 10 hours I'd go through this again while I wait for Gears 3 to get it, but doing it stealthy takes a lot longer, even on easy. The developers should definitely have put a running stats screen to give people a boost in this game. Just one that you can access every now and then which tells you how many detections, kills, hacks etc you've done so far so if you see that you've had a detection that you're not aware of you can reload the game and go through again. I hear towards the end when the alarm goes off loading the virus with some people it bugged, b

Comment #104 by Garlyle
Saturday, September 17, 2011 @ 01:54:05 PM

The biggest problem I've run into is the fact that turrets can be across the room on a different floor, and they will still see you. Not only that, but they only have to see you for a split second before they set off their own personal alarm, screwing you out of the achievement. memorizing the turret location and cloaking appropriately will go a long way in getting you this achievement.

Comment #105 by KHannibal
Sunday, September 18, 2011 @ 03:15:16 PM

It's a pain... No turrent, no cam, nobody saw me (no hostile went "alarmed" except durint those scripted moments) and I did not get it. What should I have to do ? It's the last achievement I need for 1000. WTF EIDOS ?!?

Comment #106 by Garlyle
Monday, September 19, 2011 @ 09:41:02 AM

On the belltower dock, I hacked the security console and made the robots attack the guards. None of the guards ever saw me, and I still got the smooth operator bonus. Does that mean I didn't invalidate this achievement?

Comment #107 by Garlyle
Monday, September 19, 2011 @ 11:14:59 AM

Just got legend, but this damn achievement didn't pop! The worst part is that I always got smooth operator. Does anybody know is there is a list somewhere out there that documents every possible section in which it is possible to get smooth operator? If I could find that, then if I didn't get it in a specific section, I could redo it, instead of having like 7 different saves through the entire game.

Comment #108 by blackdragon71425
Monday, September 19, 2011 @ 04:20:05 PM

@107, if you hack the bots and turn them hostile, the remaining guards will go trigger the alarm, I did it on other play throughs.

Comment #109 by Delete
Monday, September 19, 2011 @ 06:53:10 PM

@106 You said you hacked the bots on the belltower stage and made them kill the guards right? I am sure that counts as you killing them and even if it doesn't, what 108 said is true. Best thing is to not kill anyone at all in any kind of way. Like I said, it's really not that hard (although if it bugged for some of you,I'm sorry to hear that). Another thing to realize is you need to save not just often but literally all the time. Have 3 or 4 different saves as well just in case you make a mistake or you wanna try something risky that may bite you in the butt a few minutes later (like knocking a guard out and someone finding the body after your a ways a way). Upgrade your Cloak and get it to the 7 second upgrade first and the rest of the game is cake.

Comment #110 by Garlyle
Tuesday, September 20, 2011 @ 02:06:12 PM

playing through the game, again, and I noticed something in TYM. in the elevator, just before you reach the floor where you get the cutscene with Zhao, my hud flashes alarmed. I am in the damn elevator! I even went back to an earlier save and made sure to not touch or alert anyone! The entire time I am in the elevator, my hud says alarm, but the second I step off it and out into the hall, it fades just like that. Could an alarm be sounding somewhere, screwing me out of this achievement, or is this just some meaningless anomaly?

Comment #111 by Garlyle
Wednesday, September 21, 2011 @ 08:21:07 AM

does anyone know if revealing yourself to save malik invalidates the achievement?

Comment #112 by Delete
Wednesday, September 21, 2011 @ 10:42:41 AM


I'm pretty sure it does cancel out the cheevo. There's guides for doing that
for getting this achievement and they remain hidden the whole time probably
for this reason. Best advice would be to cloak and leave malik to die.

Comment #113 by Shepard
Wednesday, September 21, 2011 @ 11:22:53 AM

I read up until all comments. And I thing that this cheevo may be glitched.
Some get it, other don't. Even though many followed every step not to set off
an alarm.

**if you FAIL A HACK when only 1 attempt remains IT WILL SET OFF and alarm even if you

But in my playthough I got enemies hostiles towards me, a couple of turrets spotted me
, but I'M PRETTY sure I never let anything set off an alarm.

I wanted to get pacifist and doctorade in my second playthrou... this is ridiculous,
why there isn't some way to keep track of this?

Comment #114 by MrE26
Wednesday, September 21, 2011 @ 06:57:55 PM

No, it doesn't cancel it out. Guards becoming alarmed or hostile don't effect the achievement at all. Only an audible alarm set off by a guard, a camera or a failed hack count. I knocked out every enemy on the Malik section, & got spotted numerous times by them & i still got it.

I definitely got spotted by turrets & robots too, so it's confusing reading people claiming that turrets going hostile cancels the achievement, when i know it didn't for me.

Comment #115 by Delete
Thursday, September 22, 2011 @ 07:52:31 AM


Even so, it's still best to not get anyone never know when you
might leave the area and they may sound an alarm and you not even hear it. If
you want to be on the safe side, just cloak your way past everything, it's
not really ever hard as long as your patient.

Comment #116 by Shepard
Thursday, September 22, 2011 @ 11:40:13 AM


Actually even if an alarm is there is not alarm in the stage, a camara going red locks this achivement. I remember when escaping the Alice Pods Garden the camera caugh a guy knocked out and it went red. No alarm. So I kept going. And THAT'S WHY I didn't get this achivement.

Comment #117 by Shepard
Thursday, September 22, 2011 @ 11:42:32 AM

This is why I meant at the beggining: "Actually even if there is not an alarm in the stage..."

and why I can't edit a post lol

Comment #118 by Corpset
Friday, September 23, 2011 @ 09:36:57 AM

Yeah this achievement must be bugged. I just completed the game for the second time and was going for foxiest of hounds, legend, and pacifist all at once and to be on the safe side i saved A LOT and if a guard, turret, camera or anything went hostile i loaded my last save so i made it through the entire game without even being in a hostile state, for the last boss i just stealthed and used the laser rifle to finish her off in 5 seconds basically skipping the entire boss fight and when i completed the game the achievement did not pop, pacifist and legend did but foxiest of hounds did not and i KNOW that i never set off an alarm cause like i stated i reloaded if even a guard entered hostile state. I'm kind of irritated because this took awhile and i reloaded quite a few times in order to mak

Comment #119 by Corpset
Friday, September 23, 2011 @ 09:38:07 AM

e sure i got it and then it glitches on me at the end, very irritating.... ugh

Comment #120 by bushkes
Saturday, September 24, 2011 @ 11:54:39 AM

Just got this today, guards can go hostile as long as they don't pull any alarms themselves. Not sure if I needed to hide from the turrets in the hive at the end.

Comment #121 by Naberios
Sunday, September 25, 2011 @ 03:24:42 AM


In the TYM Penthouse, there are apparently guards/snipers looking in the windows. This includes the elevator ride. Once you enter the Penthouse, you'll notice that the3re is light coming in from the right side of the room, and no windows on the left, and the elevator is glass, so once you get high enough, they spot you and become alarmed. If you have a save before that area, load it up, crouch, and stay out of the light. They won't see you. And of course, stay out of the areas where the light is coming into the rooms. Hope that clarifies things for ya.

Comment #122 by tw1st3dj0k3r
Tuesday, September 27, 2011 @ 09:05:52 AM

does it count agents you if you are hacking a computer or a door and the alarm goes off but you get a successful hack ???

Comment #123 by tw1st3dj0k3r
Tuesday, September 27, 2011 @ 09:08:18 AM

i have this achievement and doctorate left , lol

Comment #124 by Shepard
Tuesday, September 27, 2011 @ 02:40:54 PM

CORPSET the archivement that is bugged is Pacificst, since sometimes in rare ocassions the tranquil rifle or the stun gun kill. Foxiest of the Hounds seems to work ok, the problem is that you don't sometimes know when you are seen by cameras, if they turn RED, reload. Even if they sound no alarm. Is the only way I can think you may have missed it, Also with failed hacks.

NABERIOS: I got Foxiests of the Hound even by being seen by those cameras. I was worried too, so reloaded to evade them but I couln't so I figured it should be ok to go.

Comment #125 by V0RTEXX
Thursday, September 29, 2011 @ 06:35:59 PM

Ugh... didn't set off a single alarm and still didn't land this one. Nailed Pacifist though, lol. I agree with the comment #118, it seems some get it and some don't. Maybe the third time will be the charm. On the bright side, it only took a few hours to complete the game going cloaked most of the time, lol.

Comment #126 by tw1st3dj0k3r
Friday, September 30, 2011 @ 07:44:55 PM

this one was a bitch but i did it , from 9-8-11 to 9-30-11 i have all
achievements for this game

Comment #127 by Naberios
Saturday, October 01, 2011 @ 09:58:30 AM


I think it took me right around 3 weeks too... crazy. When I saw that I couldn't believe that I had been playing this game for that long....


Not sure which cameras you're talking about. Penthouse? I never had any problems avoiding cameras(once I knew where they were). Glad it didn't affect your achievement, but if you need help on specific camera spots in the future, let me know.

Comment #128 by SyKo bAmBi
Tuesday, October 04, 2011 @ 10:40:56 AM

I got this achievement a couple days ago. I did get noticed by some guards who went "hostile" right as i was gonna do a take down on them, but I'm pretty sure they're referring to physical alarm systems. Just to clear that up to some people.

Comment #129 by Shiva Harris
Thursday, October 06, 2011 @ 01:31:06 PM

So, it's only if a guard pulls an actual alarm, and sets of the honking/klaxon sound?

Comment #130 by Crispo
Sunday, October 09, 2011 @ 10:36:09 AM

anybody know if the praxis trap when patch eye comes charging in counts as an alarm? Even if you disarm the mines?

Comment #131 by CrabmanAk
Monday, October 10, 2011 @ 03:42:38 AM

If anyone having problems getting this, I think there might be a bug with the pre-order add on, the explodive one I think, I've completed the game from start to finish 4 times without setting off an alarm, and the only mission I dont get smooth operater for is singerpore, when you turn off the jamming signal and or locate the first scientest.

Comment #132 by JACM808
Monday, October 17, 2011 @ 11:36:11 PM

MAke sure you dont fail any hacks while on missions, since failing automatically sets off the alarms. Even if no guards or cameras see you during that, it'll still cost you the achievement

Comment #133 by alex the plamf
Tuesday, October 18, 2011 @ 08:22:09 AM

The alarm needs to be physically set off by a guard, failed hack or camera (including guards going down infront of cameras) since turrets and bots are independent they have not ability to raise alarms
you can use the stun gun temporarily shut down a camera if you are having trouble with it, the gas grenade knocks large groups out without killing them if you are after pacifist. story alarms do not count like when you are duped with the panic room. the prologue also counts but you can sneak around the desks as I managed it, just watch patrols and take your time. a good tip if you want rid of guards too is to throw boxes against walls or shoot a silenced pistol at a wall in a remote area and one (on rare occasions two) guard(s) will break off from the pack. hide bodies in vents to avoid othe

Comment #134 by alex the plamf
Tuesday, October 18, 2011 @ 08:25:03 AM

r guards finding them and dont waste your praxis on stealth enhancements as they do little to nothing to help

Comment #135 by CarapauGt
Saturday, October 22, 2011 @ 07:40:06 PM

There is several references do metal gear. Darpa, the robots seems like the
metal gear in mgs 1, the achievement. :)

Comment #136 by cjdavies
Tuesday, October 25, 2011 @ 01:20:11 AM

If ther alarm sounds I simply re-load my last save and start again, simple ( I hope).

Comment #137 by cjdavies
Tuesday, October 25, 2011 @ 01:25:03 AM

How do you know you have "Smooth Operator" at the end of a mission.

Comment #138 by pmorbey
Friday, October 28, 2011 @ 03:56:27 PM

I'M ttrying 4 this now and have only slightly had the guards say is someone there etc and have not been seen by nothing otherwise I think I have smooth operator at the end of the levels and only had ghost come up once will I still get it if I carry on kIke tIis please help don't wanna play through a 3rd or 4th time

Comment #139 by xholy shackles
Thursday, November 03, 2011 @ 09:10:08 PM

i just thought i should verify this for all those who are concerned. you can be seen as in alarmed, and even hostile. and still get this achievment. the trick is though in certain parts of the game like in compunds, if the enemy is alarmed or hostile they will run to a alarm switch. if that bad boy is hit the achievment is gone. but aslong as you dont see them switch it or hear the alarm going off then your fine. areas where the alarm is automatically triggered dont affect the achievment either so dont worry. cheers hopes this helps.

Comment #140 by xholy shackles
Thursday, November 03, 2011 @ 09:11:46 PM

also, failing to hack a terminal/door etc. will result in an alarm going off so make sure and save before or back out of the hack before its too late.

Comment #141 by xholy shackles
Thursday, November 03, 2011 @ 09:16:30 PM

oh ps. ps. if you enable robots and turrents terminals to attack the enemy, this could also (BIG probablility) screw you out of the achievment because when the robots etc attack, some guards will run to hit the alarm. so be weary. the only time i used the turrents/robot was at the very end of the game in which youll know off the bat the enemies you fight are completely different then the whole game. this also voids the pacifist achievment too, so keep that in mind. any help or questions please dont botther to msg me on xbox. cheers

Comment #142 by cjdavies
Friday, November 04, 2011 @ 01:39:43 PM

Dam it, my first playthrough, I got the Pacifist but not this, looks it's going to be three times now then, considering there is no way I'm attempting Legend and this together.

Comment #143 by cjdavies
Friday, November 04, 2011 @ 01:42:13 PM

At #144 thanks I'm glad someone has verified and done it, people need to get their facts and stop confusing others with the turrents going red.

Comment #144 by cjdavies
Friday, November 04, 2011 @ 01:48:52 PM

Sorry meant to say 114

Comment #145 by heart attak joe
Tuesday, November 08, 2011 @ 04:44:03 AM

f*ck me this is a whore of an achievement, i f*cking played thru twice now, stealthy both times, the latest one i did for legend and this but this didn't f*cking pop i set off no alarms, even if guards went into alarmed state (except scripted parts) i'd reload it took me 4 times longer to do it, only the last bit with the bots and crazies would i get hostile or alarmed i reloaded that last f*cking bit time and time again but yet still nothing. WTF?! this is really doing my tits in i know i did nothing wrong whatsoever i'd instantly reload if something is a tiny bit wrong sometimes losing a hefty few minutes. thank eidos, you dicks, so now this is getting traded today as a preorder on skyrim. foxiest of the hounds my arse something is seriously awry with this

Comment #146 by KingKarl
Friday, December 30, 2011 @ 12:45:47 PM

heart attak joe, I definitely agree with you.
I played it twice now just because I made a mistake with the first playthrough and failed a hack. I had 900 points after the first playthrough. Just made the second one for foxiest. I'm sure I did nothing wrong this time.
Foxiest my arse - you say it!

Comment #147 by bakusaiga
Monday, January 23, 2012 @ 05:55:07 PM


Comment #148 by a skirt chaser
Thursday, February 09, 2012 @ 12:07:17 PM

Alerting enemies doesn't mean "setting off an alarm". In fact, there are only a few missions where there are alarm systems which alert hostiles.

If you can hack and disable alarm systems in these missions, then you can actually alert enemies, but since the alarm systems are disabled, no alarm is ever sounded.

hope this helps guys

Comment #149 by Kamau
Sunday, February 12, 2012 @ 07:24:26 PM

I played through this and was able to get Pacifist but missed this one. Still don't know how. Had to do an entirely new play through focused only on this before I got it.

Comment #150 by Curly Turdz
Wednesday, February 22, 2012 @ 09:52:37 AM

Actually a straight forward achieve to get, just DON'T set off any alarms. If you do, reload checkpoint and go over again... simples. Open conflict is fine, just don't let anyone set off any alarms or you have to start that checkpoint over again. Good Luck!

Comment #151 by urs myers
Friday, March 02, 2012 @ 02:01:29 PM

i did this and never got the achievement

Comment #152 by Texez
Friday, April 06, 2012 @ 03:56:31 PM


Never raised more than suspicious or alarmed (if I triggered higher I automatically reloaded) No alarms other than scripted. Got pacifist, did not get Foxiest. Absolute BS. I spent a month on this.

Even the final boss I stayed hidden from bots and people. Horsehi*. Such f****** horseshi*

Comment #153 by xXJuicyGiantXx
Saturday, April 21, 2012 @ 08:46:40 AM

basically you have to get every "smooth operator" bonus, i used this list to make sure i got all of them
and if you fail a hack it counts as an alarm, if you back out of the hack once you start it counts as a fail (i thought if you backed out without the timer going to zero it didnt count as a failed hack but i was wrong, figured that out and got the achievement on the next playthrough) i basically avoided hacking wherever i could and used passcode and password lists when i needed too, here are the links:

Comment #154 by SevenForceKaede
Sunday, April 29, 2012 @ 10:15:15 AM

Most satisfying achievement to get, along with Pacifist and hardest diff. at the same time.

Comment #155 by Zoinks
Friday, May 04, 2012 @ 09:01:39 AM

One thing I've learned from playing other games is that you should never reload from an auto save nor allow a game to do it automatically upon death. Always load saves you created yourself. I wouldn't be surprised at all if this is what is causing even the most careful gamer to fail.

Comment #156 by ttdrevan
Sunday, May 13, 2012 @ 04:05:03 PM

I don't have aug that allows me to disable robots after Zhao panic room incident, got smooth operator, but no ghost since I emp'ed both robots, they tuners hostile for few seconds and I don;t have ghost bonus, will the achievment unlock?

Comment #157 by ttdrevan
Tuesday, May 15, 2012 @ 01:53:37 PM

It seems either these robots or something elese disabled Pacifist for me, got Foxiest though.

Comment #158 by Krome x Comando
Tuesday, May 29, 2012 @ 05:57:33 AM

Can anyone confirm that quiting a hack counts as failing?

Comment #159 by Angelic Creed
Thursday, June 07, 2012 @ 04:47:38 PM

Got all three 100g's on my 2nd playthrough, thx for all the tips and warnings!!!

Comment #160 by urs myers
Friday, June 15, 2012 @ 11:16:18 AM

got this the other day. best bet is to just keep loading you autosaves when ever you set of an alarm since im still not sure if the alarm has to be sounded rather than the individual being alarmed

Comment #161 by B Master
Monday, July 02, 2012 @ 04:48:24 PM

(Spoiler alert) So upset i didn't get this one. Rented this game for a week. Played it on the hardest difficulty first and get all the achvievements but this one and Pacifist which i would go for on my 2nd playthrough. Except i just finished the game and wouldn't you know it Pacifist only shows up. I'm baffled i saved so often i never set off any alarms that werent already going at certain points and i asume the alarm that sounds when you go through the decontamination spots don't count as i did not see a way around them. Never even touched an enemy or stunned or tranqd em. Just used cloak and timed my movements to get by them all, even the crazies at the end. loaded a previous save whenever i got detected or even if i wasn't sure or not. Some way of checking to see if you have set any off

Comment #162 by B Master
Monday, July 02, 2012 @ 05:16:55 PM

(Again Sploiers) So i was reading some other posts here and some mentioned that a failed hack counts as an alarm which slip my mind because i never hacked much let alone let one fail. Except on Panchea there was a door i failed to hack right before the turret on the ceiling before talking to Darrow and i herd no alarm so i just kept going but i just went back to a save before that part and didn't hack it to fail. And Got The Achievement!!!!!! So stoked was gonna return it today too. Now i got all of em except for the DLC but don't care cause i an't buyin it as i only rented this game. Yeah!!! 1000GS Baby

Comment #163 by id9mm
Wednesday, July 11, 2012 @ 02:55:01 PM

ok, im going to try this on my 2nd walk, and hope can get it also if somebody hs a full list of what i dont must do will be cool... thanks

Comment #164 by Restartz
Sunday, August 19, 2012 @ 08:25:31 PM

does anyone have a guide? if so send one plz :D

Comment #165 by WinterIce8
Thursday, August 23, 2012 @ 10:38:07 PM

Enemies can see you, just as long as there is no audible alarm, I did this one along with Ledgend and Pacifist, and got all three in the same playthrough.

Comment #166 by fohf
Wednesday, September 05, 2012 @ 02:28:27 PM

I just got this achievement yesterday and the ONLY thing that counts are alarms set off by soldiers using control panels on the wall (they have hand icons on them), failing hacks, and by cameras spotting you.

I did this on my 2nd playthrough let me explain the things I did which still allowed me to get the achievement:

I murdered EVERYONE. Every mofo I came across. Seriously, doesn't matter if they spotted me and went hostile as long as I killed them before they touched the alarm on the wall. Doesn't matter if one of them came across a body and were "alerted" I killed them as well.

Many cameras spotted me and were "suspicious" but they didn't set off the alarm. If they turned red (or spotted a corpse) I would reload, but otherwise I moved on.

Turrets spotted me and beeped,

Comment #167 by fohf
Wednesday, September 05, 2012 @ 02:29:30 PM


Turrets spotted me and beeped, but didn't raise the alarms.

I threw many EMP grenades at cameras and turrets to destroy them.

I disconnected a hack if I felt I was going to fail it. (failing a hack will set off the alarm).

I almost never got the "Smooth Operator" bonus.

I killed all the crazy people at Panchea.

Comment #168 by kaiiser
Sunday, September 16, 2012 @ 05:01:39 AM

2nd playthrough - gonna try and stack the 3 biggies

Comment #169 by Mystr Flibble
Monday, October 01, 2012 @ 10:40:52 AM

Thanks everyone here who actually posted helpful hints here. I got it easily =D

Comment #170 by beginner123
Sunday, October 21, 2012 @ 11:23:03 PM

Can I still get it after they spot me and kill me and it reloads back to another save?

Comment #171 by Agent Mantis
Friday, October 26, 2012 @ 12:54:53 PM

Lame, thats 3 attempts at this now and still no achievement, got all the smooth operators, no hack fails and not even a suspicous camera. My mate kills everything in sight, alarms going off everywhere and he gets it, grrr!

Comment #172 by Pigpeyn
Monday, November 05, 2012 @ 08:44:33 PM

Just got it after running through Panchea like a lunatic. Killed all the crazy people, put an exploding magnum round in Darrow and threw grenades like a jackass on crack. Fun as hell way to end a sneak run!

Comment #173 by Scorpion485
Friday, November 30, 2012 @ 11:20:58 PM

I made it to the medical place. I was getting towards the end where you have to sneak past the camera. The alarm went off and the bot cam out, but the status only said alarmed. I was never fired upon and they never knew exactly where I was. In the description of this, it said just as long as you don't go hostile, you're fine. Am I okay or do I have to go back? Also, when I'm trying to escape from the medical place, there are two bots blocking the opening for the carrier. What do I do to get past them without triggering them to go hostile? I threw an emp grenade at one of them, went hostile for a second, and then exploded.

Comment #174 by Scorpion485
Friday, November 30, 2012 @ 11:22:06 PM

When I say description, I mean what it said in the description in the guide.

Comment #175 by Scorpion485
Friday, November 30, 2012 @ 11:55:11 PM

P.S. I just redid it and the alarm did not go off, so I was okay. Though, as I was traveling up the elevator and that guy who gives you credits was talking to me and the status randomly said alarmed. I reloaded it and it did the same thing. Is that supposed to happen? Should I worry about it and my question on how to take care of those bots without it voiding what this achievement?

Comment #176 by Scorpion485
Saturday, December 01, 2012 @ 12:17:47 AM

This is the last one I swear lol. I just got past the bots and they did not go hostile when I threw the emps at them, so that's fine to. Still wondering how the elevator from #175. Am I okay there? Just in case I do have a save for it if need be.

Comment #177 by MorbidEclipse24
Sunday, December 30, 2012 @ 10:29:07 PM

This is a great challenge.. Its just the stress of it really.. i mean.. I "think" i may have messed up earlier with the dbr gang or whatever.. but i have no idea. i think its all good but still it worries me lol I wish in the completed missions recap section theyd show the bonuses you received upon completion.. since it is achievement related after all.

Comment #178 by MorbidEclipse24
Wednesday, January 02, 2013 @ 10:45:15 AM

Finally got this!! I definately enjoyed the challenge.. Havent had a good cheevo like this in awhile. thanks to everyone for clearing everything up on here. great game.

Comment #179 by Mr Snict
Monday, February 04, 2013 @ 04:26:34 AM

Like the Metal gear reference, did this on pc and I regret it XD

Comment #180 by Arcanewolf59
Wednesday, February 13, 2013 @ 04:26:11 AM

Just wanted to post a success story for this achievement like some people have done.

- Cameras can go suspicous but not alarmed (once a camera sounded an alarm at the suspicious level though and I reloaded)
- I had bots, civilians in Detroit, guards, gang members all go hostiles and still got it. It has to strictly be an audible alarm
- Never failed a hack on the last try, but that is proven to void this

Comment #181 by Lukeyy360
Sunday, March 03, 2013 @ 10:07:17 AM

I really need to go back through this game its the last achievement i need and it was my GOTY in 2011 :)

Comment #182 by daddywayhaar
Sunday, March 03, 2013 @ 02:56:47 PM

Going to start this. Thanks for the info guides posted!

Comment #183 by daddywayhaar
Saturday, March 16, 2013 @ 05:56:16 PM

And screwed up somewhere

Comment #184 by daddywayhaar
Sunday, March 24, 2013 @ 05:03:50 PM

Got it on give me deus ex. Thank you Mr MD gamer!

Comment #185 by I Like Sheep
Sunday, May 12, 2013 @ 10:18:45 PM

I honestly didnt find this that difficult, I was going for it but was half expecting not to get it. I did reload my saves frequently though, but i can confirm the following in case it hasnt already been confirmed:

- Enemies CAN go hostile. This includes robots. Im not sure about turrets; i think i always reloaded if a turret saw me and went hostile. You can get into a nasty firefight with 30 guys all screaming at you from 360 degrees with robots attacking from left and right. AS LONG AS NO ONE PULLS A WALL ALARM, then youre fine.

- Suspicious cameras are OK! i had a lot of cameras go suspicious towards the end and throughout the game. don't let a camera go hostile because if it does it sounds an alarm. its not the camera going hostile that voids the achievement, its the alarm that i

Comment #186 by I Like Sheep
Sunday, May 12, 2013 @ 10:20:02 PM

its the alarm that it sounds.

-DO NOT fail your hacks as alarms sound UNLESS youre in city hubs like detroit and shanghai. still, dont fail those either just to be super safe.

Like i said, i didnt find it that hard, and i did at the same time as pacifist and the legend. I honestly assumed i wasnt gunna get it but it popped at the end of the game! it was fun t go for though :)

Comment #187 by Arthuro906
Tuesday, May 14, 2013 @ 11:23:58 AM

This is absolutely the hardest achievement in the game, I recommend doing it on a Third run for this cheevo only. Since by then you should know the levels perfectly.

Comment #188 by Infernal Satan
Friday, May 24, 2013 @ 05:57:24 PM

Just a note:

1. Only missions with Smooth Operator bonuses count towards this achievement (check wiki)
2. Rescuing Malik while being shot at does NOT affect this achievement
3. Hacking a turret may or may not affect this achievement. I only tried this at Picus while I was waiting for the elevator. The turret killed the enemies before they could reach the alarm panel. Unfortunately I cannot vouch for other turrets especially the fixed ones in Panchea.

Comment #189 by ccrocker58
Wednesday, November 27, 2013 @ 10:59:20 AM

Yeah this achievement is bullshit.

Some people on here have said its bugged...and they're actually kind of right. The game has a bug that effects all platforms the game is on (not sure about the Directors Cut though; that version evidently fixed a lot of bugs). Apparently the game will pick up the stats from other save files and apply to your current one. The issue is rare, but it can happen. The best way to ensure this isn't an issue is to delete all the game data before going for this.

That said; there are some things to note. In general, the game is referring literally to triggered alarms; if you can actually hear the alarm going off, you lost the achievement. With that in mind, soldiers/infantry/mercs going hostile does NOT necessarily mean you messed it up; you're good so long a

Comment #190 by ccrocker58
Wednesday, November 27, 2013 @ 11:17:40 AM

as they don't run over and sound off the alarm. Turrets are ridiculous. It seems to me that some can trigger an alarm after they fire at you, and some don't. Likewise, some firing at you will turn enemies hostile, and some they won't. Basically, if a turret even sees you, reload. Camera's only register as an alarm if the cone of light they emit is red; even if you don't hear an alarm sounding off. If the light is yellow, and the status reads as "Suspicous" you're fine. If you don't want to chance things, you can permanently disable cams with an EMP grenade, or disable them for 10 seconds with the stun gun. Be wary of dead/unconcious bodies. If found, enemies will trigger an alarm, even if they don't see you. This counts even if you are across the map. Your radar won't register it since you

Comment #191 by ccrocker58
Wednesday, November 27, 2013 @ 11:19:15 AM

you're no longer in range of the alarm, but if a body is in another enemies patrol path, they will find it and they will pull the alarm. So always make sure you hide bodies where no enemies can possibly find them.


This is where I think most people unknowingly mess up this cheeve. It doesn't matter where you are, who's around, or if you don't hear an actual alarm sound; IF YOU FAIL OR DISCONNECT A HACK, you lost elegibility for this achievement. So yes, if you decide to hack the panel in your own damn apartment that raises the TV and you fail it or opt to disconnect, you done fucked up. Save before every hack attempt; and if you screw up, reload.

Lastly, while watching to see if you earned the "Smooth Operator" bonus is the only way to track this

Comment #192 by ccrocker58
Wednesday, November 27, 2013 @ 11:20:38 AM

achievement, it is bugged. For some reason, even if you successfully did everything needed to earn it for a mission in which it's possible to earn it, sometimes the game won't give it to you, yet you'll still be good as far as this cheeve goes. Save right at the start of every mission, and unfortunately, if you don't get the bonus, even if you're positive you did everything right, I suggest reloading.

Comment #193 by The Debauchery
Friday, January 17, 2014 @ 01:15:46 AM

So many comments...
And I still couldn't find any confirmation as for whether this applies to the building at the start before you get augmented...
I came into this game blind, decided to go for the Pacifist right off the bat so I didn't kill anyone at the start. I couldn't stealth past them effectively though, so it mostly consisted of running right through the middle of them and doing my best not to die.

I really hope there were no alarms at all Pre-Augment or I already screwed this up. ¬_¬

Comment #194 by rexmac88
Sunday, June 22, 2014 @ 05:05:21 PM

I've been play on the Directors cut. Idk if its bugged or i messed up somewhere not realizing it. Most of the time the game told me the guards were alarmed even though I had just started the mission or I was aimlessly strolling through a hallway when I never killed anyone and there were no cameras or guards around me. Even If i was spotted I reloaded my saves since i saved so frequently.

@#193: The first mission before you get augmented counts.

Comment #195 by Rieckehoffx1
Tuesday, February 09, 2016 @ 10:47:14 AM

Question: in the part "Corporate Warfare", there's an area where two big robots are, How do you get by them without them becoming hostile?? II tried emp but they turn hostile after the grenade explodes.

Comment #196 by Rieckehoffx1
Tuesday, February 09, 2016 @ 10:52:06 AM

*APOLOGIES* for the comment above. I meant The "Tai Yong medical" part.

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Game Info
Eidos Montreal
Square Enix


US August 23, 2011
Europe August 26, 2011

HDD Space Required : 6.79 GB
Backward compatible on Xbox One: Yes
Price: $14.99USD
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User Score is based on 954 user ratings.