Here is the full list of all 41 Cube Runner achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
Use gravity switch 50 times.
Activate 10 checkpoints.
Activate 5 checkpoints.
Use direction switch 25 times.
Use direction switch 10 times.
Use gravity switch 25 times.
Use gravity switch 20 times.
Use gravity switch 15 times.
Use gravity switch 10 times.
Use gravity switch 5 times.
Use switch 25 times.
Destroy 25 enemies that are blocking your path.
Use switch 20 times.
Destroy 20 enemies that are blocking your path.
Use switch 15 times.
Destroy 15 enemies that are blocking your path.
Use switch 10 times.
Use switch 5 times.
Destroy 10 enemies that are blocking your path.
Destroy 5 enemies that are blocking your path.
Finish all 6 tutorial lvl-s.
Use switch first times.
Activate your first checkpoint.
Die 25 times.
Die 20 times.
Die 15 times.
Die 10 times.
Die five times.
Use gravity switch.
Destroy first enemy that is blocking your path.
Die one time
Finish 25 lvl-s.
Finish 50 lvl-s.
Finish all lvl-s.
Finish level 10.
Finish level 15.
Finish level 20.
Finish level 30
Finish level 40
Finigh level 60.
Finish level 70