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