Full list of all 23 Afterparty achievements worth 1,000 gamerscore. It takes around 10-12 hours to unlock all of the achievements on Xbox One.
Achievements they've won
Achievements they've not won
Recruit the Drunk Idiot Demon for Satan's final challenge.
Make friends with Wormhorn.
Play as Lola after fighting with Milo.
Get an Invite to Satan's from Lynda.
Don't miss a step while dancing.
Beat Satan and earn your way back home.
Intentionally lose to Satan.
Intentionally curse twenty times.
Fail to beat Satan.
Drink a lot of booze.
Play a perfect game of beer pong.
Make friends with Sam.
Reunite Milo and Lola.
Played as Milo after fighting with Lola.
Reunite Beth and Asmodeus.
Get Asmodeus's Seal of Approval.
Try 20 different drink types.
Get Apollyon's Seal of Approval.
Play a perfect drinking game.
Pet the damn dog.
Get an Invite to Satan's from Fela.
Waste 20 minutes on Bicker.
Kick off your adventure in Hell.