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