Here is the full list of all 9 The Archotek Project achievements.
Scream into the Void
Participate in the Halloween Event
Collect 100 claws during the Halloween event
As a carnivore, eat your own corpse.
Kill 5 apex dinosaurs without dying.
Accumulate 50 kills without dying
Accumulate 100 deaths without killing
Poop on a dead dinosaur
Unlock all Halloween skins.