Muck achievements

Beat the game alone without taking any damage (Normal difficulty or harder)

Beat the game using only a rock as your weapon / tool. This goes for all players.

Beat the game with 4 players, but no one can take any damage (Normal diff or harder)

Survive for 100 days

Kill 100,000 mobs

Beat the game with 2 players, but no one can take any damage (Normal diff or harder)

Beat the game with 8 players, but no one can take any damage (Normal diff or harder)

Beat the game using only a rock, taking no damage and using no powerups. This goes for all players in lobby. (Normal or harder)

Kill 250 buff mobs

Swim 25km

Kill 10,000 mobs

Beat the game in less than 8 days