The series was also slated to be adapted into a series of video games, developed for the Nintendo DS, PlayStation Portable and PlayStation 2 platforms, and was published by Namco Bandai Games. The official website for the first Nintendo DS game, Code Geass: Lelouch of the Rebellion, launched on July 16, 2007, with the game being released a few months later on October 25.
A second game, titled Code Geass: Lelouch of the Rebellion Lost Colors was developed for the PlayStation Portable and PlayStation 2, and released in Japan on March 27, 2008. It is a visual novel game which follows a new protagonist named Rai (ライ?), who suffers from amnesia. He has a Geass ability similar to Lelouch's, but activated by voice.
The third game for the Nintendo DS is a collection of minigames featuring super deformed forms of the characters. The player moves along a board through dice rolls, landing on different spots to activate minigames. The minigames are parody-style events with multiple genres. These include helping Jeremiah grow oranges, racing against C.C. and Shirley in swimming, and a sidescrolling beat-em-up featuring Kallen in Guren-like armor.
Code Geass R2 is slated to appear in From Software (Demon's Souls, Armored Core) and Banpresto's PlayStation 3 exclusive mecha action game Another Century's Episode R, released in Japan in August 2010 and in which both versions of Suzaku's Lancelot, Lelouch's Shinkiro, both versions of Kallen's Guren, and C.C.'s Akatsuki are playable. A fourth installment of the ACE franchise for the PlayStation Portable, Another Century's Episode Portable, will include Suzaku's Lancelot Albion and Lelouch/Zero's Shinkiro.
Code Geass characters are slated to appear as costumes in the PlayStation 3 game, Tales of Graces F. These characters are Zero, Suzaku, C.C. and Kallen.