Here is the full list of all 21 Oneiros achievements.
Finally, it's open!
Found all anatomy books.
Finished the Unicorn game.
Scored 5000 points in Miami Street Skater 3.
Found all gameboxes in the room.
Logged into the laptop.
Seen every movie at the Cinema.
You flushed the toilet, well done.
You've fixed the car!
Well, you've catched a rat.
Charged the battery full.
You've cooked the fuel, OMG.
Is there anyone on board who can fly this thing?
Where am I?
Managed to get on the other island.
Reached an agreement with the Bird.
Unlocked all combination locks.
Gave the bird all snacks.
Found the Egg.
Finished the Arcade Game.
Pulled out the "Cuckoo".