Here is the full list of all 19 Clustertruck achievements. It takes around 8-10 hours to unlock all of the achievements on Windows.
Beat the forest world!
Get 10 000 points in one level!
10 seconds of air time!
Get the best time out of your friends on a level!
Beat the desert world
Beat the game!
Beat a ghost!
Unlock all abilities!
Aced 10 levels!
Beat the winter world!
Beat the lazer world!
Beat the medieval world!
Beat the ancient world!
Beat the Sci-Fi world!
Beat the steampunk world!
Complete the game without using abilities!
Beat the hell world!
Happy Holidays!