GrimGrimoire is a fantasy strategy video game developed by Vanillaware and published by Nippon Ichi Software for the Sony Playstation 2. Released in 2007, the game is set in a magical school called the Tower of Silver Star, where the protagonist, Lillet Blan, must relive the same five days repeatedly to prevent a devastating catastrophe. Within this real-time strategy game, the player controls units represented by familiars, fighting against either AI or enemy familiars. The game blends 2D side-scrolling action with RTS elements, providing an unusual gaming experience.