Half Life 2: The Orange Box

Half Life 2: The Orange Box Achievements


Contain the Citadel core without killing any stalkers.  

The stalkers that you can't kill are the two that are below the core. They are the bony skinny looking guys. Just don't kill them and shoot the energy balls in the opener things. Be quick because these guys disable them right after. When the core is contained and your gravity gun goes back to its original self, the achievement will unlock.

Rate this achievementAverage Rating (Based on 1 votes)
User Comments
Comment #1 by Shawty71
Wednesday, April 13, 2011 @ 08:45:21 PM

Important note: there are 3 stalkers that you HAVE to kill in order to progress the the story. Killing those stalkers does not have an effect on this achievement. This achievement only requires you to not kill the 2 stalkers who are in the very bottom level of the citadel core. If you didn't get this achievement but didn't kill the stalkers, it's likely you didn't see that you killed one with a ricocheting (sp?) energy ball that missed it's target.

Comment #2 by Killerchronic
Sunday, June 19, 2011 @ 08:50:46 PM

Feck sake, really should read through more throughly. Anyone following this its the guys the disable the bridges with the red beams, i didnt think there would be an achievement tied with them got annoyed and shot some balls of energy at them (doing the 1 bullet thing) hoping i saved around there with 1 save but nvm i guess.

Comment #3 by T3MP3R
Monday, September 26, 2011 @ 12:55:10 PM

Here is a video walkthrough:

Comment #4 by NinjaPrincess
Saturday, October 22, 2011 @ 06:36:35 AM

This can be a really annoying achievement, because the stalkers reset the target things pretty quickly. Make sure to but the orb in the target furthest from you first, that'll give you more time to get across the bridge, sprint and jump! Also the other problem I found, was I couldn't figure out how to press the button at the end, it wouldn't let me! It was because all three of the targets had to be activated at the same time! So watch out for that.

Comment #5 by Xxdefcon1EPICX0
Saturday, December 14, 2013 @ 10:04:22 PM

hmmm its a bit impossible?

You need to register before being able to post comments.

Game Info
Electronic Arts


US October 10, 2007

Resolution: 1080i
Sound: Dolby 5.1 Surround
Players: 1
Online Players : 2-16
No videos available
You need to log in or register to use MyAchievements.




You need to log in or register to rate games.

User Score is based on 2411 user ratings.