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