Here is the full list of all 36 Deponia Doomsday achievements. It takes around 10-12 hours to unlock all of the achievements on Windows.
Successfully complete all minigames on Elysium
I told you: do not tempt endings!
Go through all portals.
Use the milk on yourself.
Wait until the countdown should be finished.
Head the power inverter during slow-motion.
Logic is the last resort of the uninspired.
Press the jukebox until you get a song.
What a wild ride it has been...
Let the goat hop from flag to flag a lot of times.
Find the scaffolding!
Collect all photo variants before you take the final snapshot.
He is a true romantic
Your party be damned, let them all die.
Save your party, let nobody die.
Order a sausage from the sausage bot many times.
Annoy the sea monster until it snaps.
Find the dolphin.
The perfect place for mayhem
Dump a lot of hot coal into your crotch.
Create every jackalope and clone it.
Mix the drink first, then grind down the maggot.
Reach almost 10000 fun points.
Slightly above body temperature
Never pick up the paintball gun.
Let Rufus eat a lot of icecream.
Did anyone get that?
Slingshot the elephant before he can say anything.
Destroy many, many toilet seats.
Give Tuck all possible gun variants.
Sucessfully complete all minigames in Kuvaq
Don't put the fruit to the middle square.
He doesn't deserve any better! Kick the Fewlock as often as you can.
Welcome back to Deponia
Get distracted by a fewlock while three bars are glowing.
Please put the torch back where it belongs.