Baten Kaitos Origins is a role-playing video game developed by Monolith Soft and Tri-Crescendo for the Gamecube video game console. The game is a prequel to Baten Kaitos: Eternal Wings and the Lost Ocean. Similar to the first entry, the player assume the role of a "guardian spirit" – an unseen player avatar – who guides protagonist Sagi and his party of companions in an adventure across an aerial floating island-based kingdom in the clouds. The game retains the original's focus around the concept of "Magnus" - magical cards that capture the "essence" of items found in the in-game world, where the concept is still used as a plot device, for in-game item management, and as a basis for the card-themed battle system, albeit with minor tweaks.