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