The Waste of Space Add-on for Goat Simulator has 21 achievements.
Find all the pony horses.
Find all trophies in Space.
Find 20 trophies.
Visit the badehaus.
Find 10 trophies.
Complete test chambers.
Wrap a garl'eek in tinfoil.
Run wild with the podracer.
I wanna be a baahlionaire.
Destroy 100 asteroids.
Destroy all freighters.
Blow up all pirate ships.
Shoot down 30 police ships.
Tag 10 walls.
Complete centrifuge event.
Put a money crate in the mining shredder.
Headbutt all alien eggs.
Headbutt Lawrence S.Windler in his lair.
Pickup a photon sword as father or good goat.
Wear 30 things as a hat at the same time.
Mine 10 pieces of channitatium.