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