Castle Fantasia: Seima Taisen
- Platforms: Sega Dreamcast
- Developer: Studio e.go!
- Year: 1998
- Genres: bishōjo game, fantasy anime and manga
Castle Fantasia: Seima Taisen is a bishōjo game, fantasy anime and manga game from 1998 by Studio e.go!, available on Sega Dreamcast. This page lists its details and platform.
System requirements for this game have not been added yet.