Here is the full list of all 23 Observer: System Redux achievements.
Survive Adam’s trapware.
Embrace Adam.
Reject Adam.
Witness the lost moment
Find out the true reason behind the hanged man's death
Find out the lovers fate
Decide the fate of the organ farm.
Find the source of the distress call
Interrogate 20 tenants.
Decide the fate of the merging minds.
Find 10 nanophage patient cards.
Complete your first Dream Eater sequence.
Decrypt Adam’s figurine.
Finish the game without dying.
Interrogate Amir’s clients.
Find all RC cars and recall a memory of Adam.
Find and listen to all patient interview recordings.
Find all roses and discover the final resting place.
Find all nanophage patient cards in a single playthrough.
Overdose on synchronization pills.
Earn 3000 points during a single trapware run.
Analyze 100 objects.
Complete all With Fire And Sword: Spiders arcade games