Code Geass: Lost Stories is the only official game for the popular series "Code Geass: Lelouch of the Rebellion". In this game, players team up with Lelouch and engage in battles to crush the Britannian Empire. The game offers a unique perspective on the story, allowing players to experience the events from a different point of view.

The main story cutscenes in Code Geass: Lost Stories are made using Live 2D technology and are fully voiced. Players also have the ability to change the gender of their character at any time. Additionally, the game includes stories based on official spin-offs and game-specific side stories, such as Code Geass: Akito the Exiled and Code Geass: Oz of the Reflection.

The gameplay in Code Geass: Lost Stories features a highly strategic real-time battle system. Players must strategically place their squad's Knightmare Frames to secure victory in fast-paced battles. The high-quality 3-D battle scenes add excitement to each skirmish. Furthermore, players can create their own unique battle squad by using all the characters and Knightmare Frames from the anime. The choice of characters and Knightmare Frames is up to the player, allowing them to create the strongest squad that suits their playstyle.

Code Geass: Lost Stories brings together the original anime production staff from "Code Geass: Lelouch of the Rebellion". The game is developed by DMM GAMES and f4samurai, and published by Komoe Game. The official website and Facebook page provide additional information about the game.

Please note that Code Geass: Lost Stories contains themes of violence, sexual acts, and anti-societal sentiments, and may not be suitable for younger audiences. While the game is free-to-play, there is a payment system available for certain in-game purchases.