Frozenbyte’s unique co-op puzzle platformer Trine has been offered up by Impulse for 50% off through this weekend. This brings the price down to a very agreeable $10.

The fantasy action game has players creating and using physics based-objects to solve puzzles and defeat enemies, offering three completely different characters to use at any available time.

Trine is out now for both PC and PS3, with the Impulse sale going through the end of January 31. Check out our review of the title here and our interview with developer Frozenbyte here.