Double Fine's charming puzzle adventure Stacking is now available for the PC crowd.
Stacking is currently on sale to mark its debut on Steam, coming in at just $9.99 after a 33% discount.
It's also available in a bundle with Psychonauts for $19.99, down from $29.99.
Stacking is set in a world of Babushka dolls, and players must don and shed layers of varying abilities to overcome obstacles and challenges on a quest to rescue their siblings from the evils of child labour. Flat caps are involved. Most puzzles have more than one solution and creative approaches are usually rewarded with Double Fine's trademark wit.
Stacking is also available on the PlayStation Network and Xbox Live Arcade.