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