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