I believe on this play through I ran and hid from as many as possible and confronted minimal Nightmares.
On the next play through I killed more but I used the satelite to get rid of many.
My Next play through link below:
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https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3378141202

I believe on this play through I Ran from as many as possible and confronted minimal.

U killed only 2 nightmares? U`re 1 lucky SOB

On this play through I used the Neuromods to Upgrade the Alien Abilities and the Human abilities.
I kept all Humans Alive that I encountered on this play through.
At the End of the game I blew up Talos I Station including myself and when Alex asked me what I wanted to do? I selected "Take Alex's hand"!
Notable Steam Achievements acquired on this play through: "Shapeshifter" - You mimicked (20) or more unique objects. | "Mimesis" - You mimicked a Mimic. | "Thoughts Can Kill" - You used Psychoshock on a Human. | "I and Thou" - You completed the game in the most empathetic way possible. | "TranStar Gourmand" - You consumed one of every type of food and drink on Talos I. | "Missing Persons" - You located all employees on Talos I. | "Black Market" - You found all the smuggler's dead drops. | "Makeup Exam" - You returned to the Simulation Lab and completed the tests in Rooms A, B, and C.