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