- Estimated achievement difficulty: 5/10 [Achievement Difficulty Rating]
- Offline: 28 [1000

- Approximate amount of time to 1000

- Minimum number of playthroughs needed: 2
- Missable achievements: Yes
- Does difficulty affect achievements: No
- Unobtainable/glitched achievements: No
- Extra equipment needed: USB Keyboard Helps
Description:
CURSED BE THE CHOICE… London, 1918. You are newly-turned Vampyr Dr. Jonathan Reid. As a doctor, you must find a cure to save the city’s flu-ravaged citizens. As a Vampyr, you are cursed to feed on those you vowed to heal. Will you embrace the monster within? Your actions will save or doom London.
Unlimited XP Glitch:
This has already been targeted to be fixed by the devs, but currently you can get unlimited experience as early as the prologue if you have a USB keyboard. See this thread for more info.
Step 1: 100% Run
In this first playthrough, I would suggest doing your complete playthrough which will include getting all the collectibles. Follow the guides linked under "Lore Keeper" and pay attention to the few miscellaneous achievements (the plant, the sword, eating rats, crafting, etc).
The only other thing to be careful of during this playthrough is that none of your districts turn hostile. If this happens, the named civilians will all die, and this will void you of their collectibles. If a district is beginning to get near 50% health, make sure you spend some time creating any cures possible and bringing its health back up.
Step 2: No Kill Run
Now you will play the game again and make sure you do not kill any named civilians. You can kill any aggressive human or monster enemies, and run through only doing the main story - you should remember where to go from your last run. See "Not Even Once" for more info on this achievement, which should be the only one you have left after your first step.
Conclusion:
Vampyr is one of the year's most interesting games, cementing Dontnod as one of the most interesting developers around. Go get your teeth into it.