Here is the full list of all 19 Deponia achievements. It takes around 8-10 hours to unlock all of the achievements on Windows.
Droggeljug
What do you mean “not enough postage“?
A good demolition expert doesn't need a second try.
Finish Deponia.
Say, Goal...
Inform yourself explicitly about Deponia.
A true gourmet is not afraid to try something new!
These levers just HAVE to make some sense .
Meet yourself.
And so the journey continues...
Help? Just to adjust a few switches? Well, you can count me out!
I can assemble that all on my own.
Lets see... what else could I invert?
Finally made it out of Kuvaq.
I can sort my pigeons without your help.
Did someone order an Espresso?
Always keep an eye on your target.
Good tooth care is important.
Learn the first steps.