Successfully complete the indicated task to unlock the corresponding achievement. To view your achievements and stats in Steam, select "Community", "My profile", "View all my games", then the game and view stats.
- Dominate at Fatherhood: Beat a mission wearing the baby carrier!
- Get Over It: Revive other players 8 times!
- Greetings, Earth Citizens: Beat a mission wearing the astronaut helmet and backpack!
- Happy 50th, Walter: Reach level 50!
- Lookie, Many Stars: Get 75 stars!
- Lower Carbon Footprints: Destroy a robot overlord in multiplayer!
- Make Many Friends: Play co-op!
- Number One Tugnut: Come in 1st in a four-player mission!
- Punch Many Bullets: Punch two bullets, killing two robots, with one melee swing!
- Shoot Many Robots: Kill 10,000 robots!
- Shoot Some Robots: Kill 100 robots!
- Slotally Tober Saughter: Complete a mission on hard or insane without dying or drinking a beer!