Complete all other achievements.

Find the exit in Level 0.

Find the exit in the Habitable Zone.

Find the exit door in Pipe Dreams.

Find the exit in Level Fun.

Find the exit in the Poolrooms.

Find the exit in Level Run For Your Life!

Find the exit in The End.

Find the exit in Level 922.

Enter the hub and activate the outpost power.

Find the exit in the Electrical Station.

Find the exit in the Abandoned Office.

Find the exit in the Terror Hotel.

Find the exit in Lights Out.

Find the exit in Level 94.

Find the exit in Thalassophobia.

Find the exit in the Cave System.

Find the exit in Level 188.

Find the exit in Level 9.

Find the exit in Level 10.

Find the exit in Level 3999.

Find the exit in Level 0.2.

Find the exit in the Snackrooms.

Find the exit in Level !~!.

Find the exit in Level 52.

Find the exit in Level 55.1.

Find the exit in the Death Slides.

Find the exit in the Grassrooms.

Find the exit in Level 974.

Survive in Level 0 for 15 minutes.

Beat the game with 4 players in Nightmare difficulty.

Beat the game in Multiplayer in Hard difficulty.

Beat the game in Multiplayer in Easy difficulty.

Beat the game in Multiplayer in Normal difficulty.

Complete the final ending in any difficulty.