Here is the full list of all 13 Respawn Man achievements.
Beat another player's Steam Workshop Level.
Die 1000 times.
Publish your first level on the Steam Workshop.
Beat the postgame levels.
Why won't they stay down?
Her voyage couldn't even last 10 seconds.
Fall from a high height into water while also dying of poison.
Beat the end boss with fewer than 6 of your corpses shambling about.
Reach the end Boss.
Complete the Day segment of the game.
Complete the Dawn segment of the game.
Fall onto the flag at termnial velocity with no lives to spare.
Completed a level without dying. No corpses.