Build any of buildings in the game.
Build 10 buildings in the game.
Build 25 buildings in the game.
Kill 1 enemies in the game.
Kill 50 enemies in the game.
Kill 250 enemies in the game.
Kill 500 enemies in the game.
Survive 7 nights in the "House" map.
Survive 12 nights in the "House" map.
Survive 17 nights in the "House" map.
Survive 7 nights in the "Barn" map.
Survive 12 nights in the "Barn" map.
Survive 17 nights in the "Barn" map.
Survive 7 nights in the "Roof Top" map.
Survive 12 nights in the "Roof Top" map.
Survive 17 nights in the "Roof Top" map.