Here is the full list of all 21 WASTED achievements.
Got a Hangover for the first time.
Defeated the Coyote.
Defeated Purifier Starr.
Killed someone while stuck in a bear trap.
Wore all three types of fanny packs at the same time.
Witnessed an enemy mutation.
Finished the quest "In Dick's Shadow."
Got killed for the first time.
Welcome to the Western Wastes.
Convinced the BEEZ to begin recruitment.
Convinced the BEEZ to start dating around.
Convinced the BEEZ to help themselves.
Sided with the New Skeleton Army.
Sided with the Syndicate of Buzzkills.
Sided with... uh...
Finished the game.
Got through an entire floor of the Cooler without alerting anyone.
Got killed by a Mutapupa.
Defeated an S.O.B. Purifier.
Found the Alistair VI.
Defeated Master Y.