1. Prey Achievements
2. Do No Harm achievement

Prey

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4.13*

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937 (1%)

55-70h

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Do No Harm achievement in Prey

Do No Harm

Complete the game without killing any Humans.

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2 guides

How to unlock the Do No Harm achievement

• Heraizen

  07 May 2017 07 May 2017 07 May 2017
  56 2 41

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  Not so much a guide, but just some clarification for people worried about not unlocking this achievement.
  
  • Mind-controlled enemies exploding when they approach you do not count as kills.
  • Phantoms (or other things such as Operators) that have names do not count as human kills.
  • Ignoring Quests that require you to save someone do not count as you killing them (as long as you don't directly kill them).
  
  You can also use the Stun Gun to render humans unconscious, this is very handy to eliminate enemies without killing them.

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  If you do not see "Humans Killed" above the "Mimics Killed" in your stats section in data, you didn't kill any humans. It'll only show when you kill a human yourself. Suicide or self explosions do not count as kills. You have to actually shoot/hit them for it to count as a kill.

  Posted by BoxKingKevin on 28 Mar 20 at 04:17

  Does the mimic project on aaron count as killing a human or not?

  Posted by cactusine on 30 Sep 22 at 22:22

  I wasn't trying for this achievement in my first run through and not only did I blow up the shuttle Advent but I also beat Luka the fake chef to death with a wrench and destroyed his body with a recycler charge. Still popped at the end with Humans Killed at 0.

  Posted by Gilbert Prime on 05 Dec 22 at 03:26

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• Alice2183

  21 May 2017 29 Jul 2017
  10 10 0

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  This is a guide to fully complete the game Prey. I will be showing you how to obtain all of the game's achievements and trophies, including the collectibles for: Press Sneak, Missing Persons, Psychometry, Dear Future Self, Black Market, and TranStar Gourmand. I'll also show you how to save and kill everyone (in separate playthroughs of course) for I and It, Do No Harm, and I and Thou. In the first playthrough, I'll be showing you all of the collectibles, all miscellaneous achievements, and completing the game with no kills and in the "most empathetic" way as well as using no Neuromods for the No Needles achievement/trophy.
  
  Afterward, I will show you where to find all of the crewmates on your second playthrough and how best to kill them for I and It and Awkward Ride Home.
  
  **Note that for Split Affinity, you will need to reload at the end of your first playthrough and use one Typhon neuromod, then complete the last few seconds again to get that to count as your first playthrough. Then, complete your second playthrough in a new campaign slot, and make sure that you only use human neuromods throughout that playthrough.
  
  For the I and It playthrough, be sure to keep saves outside of major areas so that you can reload if any NPCs die without you having personally killed them. There will be 42 people you need to kill, so keep checking your tracker to make sure that the count adds up.