The MMO Add-on for Goat Simulator has 16 achievements worth 640 gamerscore.
Find all the trophies on the MMO Level.
Trash the server room
Unlock the wheel of time mutator
Visit all zones on the MMO level
Do a card trick at the magician
OMG IS THAT WHAT I THINK IT IS?
Get deviously trapped again
Jump on the launchpad
Unlock the mermaid mutator
It never erupts when you want it to.
Jörgen
Unlock the gravity goat mutator
Unlock the ExcaliGoat mutator
Baa with the choir
Enjoy your trip
Do a lot of hurt. With your butt.