Here is the full list of all 17 Recursed achievements.
Collect all crystals, diamonds and rubies in The Last Tapestry.
Arrive nowhere.
Do nothing.
Enter 100 cauldrons.
Collect all crystals.
Collect all diamonds.
Find the way out.
Hey, this is fun!
Collect all crystals and diamonds in The Oobleck Conundrum.
Enter a room that no longer exists.
Transform 50 ooblecks.
Instantiate 500 rooms.
Create an impossible situation.
Explore a level to a depth of 20 chests.
Unlocked by unlocking the Recursion achievement.