Here is the full list of all 23 Phantaruk achievements.
Find all the text-logs
Finish the game without taking any damages
Finish every level (until Crematory) without being spoted by Phantaruk
All those notes and pictures...
Find every antidote in the game
Finish the game without using the flashlight
Find all the text-logs and text-scraps
Get to the Bridge
Burn the corpses
Finish the biomed2-2 section without being spotted by Phantaruk
Run, clone, run!
Listen to all the audiologs
Destroy your dreams
He managed to escape. He found a better way.
Finish the biomed section without being spotted by clones
I'm from Earth.
I'm created.
Use antidote 10 times
Is he dead? Can he dream?
I need a bigger dose!
Use antidote in the right way
Be careful and slow.
Finish the first level