Here is the full list of all 19 >observer_ achievements. It takes around 12-15 hours to unlock all of the achievements on Windows.
Reject Adam.
Embrace Adam.
Finish the game without dying.
Find all nanophage patient cards in a single playthrough.
Find and listen to all patient interview recordings.
Overdose on synchronization pills.
Survive Adam’s trapware.
Earn 3000 points during a single trapware run.
Complete all With Fire And Sword: Spiders arcade games
Find all roses and discover the final resting place.
Decide the fate of the organ farm.
Decrypt Adam’s figurine.
Find all RC cars and recall a memory of Adam.
Interrogate Amir’s clients.
Interrogate 20 tenants.
Analyze 100 objects.
Complete your first Dream Eater sequence.
Decide the fate of the merging minds.
Find 10 nanophage patient cards.