Gyromancer is a puzzle and role-playing video game developed by PopCap Games in collaboration with Square Enix. In the game, the player moves through a map of an enchanted forest, battling monsters using their own summoned monsters through a puzzle-game battle based on PopCap's Bejeweled Twist. In these battles, the player rotates groups of four in a grid of gems to line up three or more jewels of the same color; when enough lines have been created damage is dealt to the enemy. Between battles, a story is told through a series of cutscenes, while the player and the summoned monsters gain experience and power using role-playing game elements.
The initial idea for the game was inspired by Puzzle Quest: Challenge of the Warlords, a 2007 video game which members of both companies were playing at the time. The game was proposed to Square Enix half-jokingly by PopCap's chief creative officer Jason Kapalka during a meeting between the two companies in 2007, and was released on the Xbox Live Arcade and on the Steam platform for Windows PCs by Square Enix on November 18, 2009. Gyromancer received a generally positive reception from reviewers. Critics took issue with perceived limited graphics, some aspects of the music, and a weak and confusing plot. Despite these flaws, in general they found the game to be fun and addictive, and to have a great deal of replay value.