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 medieval world!
Beat the lazer world!
Beat the winter world!
Beat the forest world!
Beat a ghost!
Beat the desert world
Get the best time out of your friends on a level!
Get 10 000 points in one level!
Beat the game!
Unlock all abilities!
Aced 10 levels!
10 seconds of air time!
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!