Touhou no Meikyuu, also known as Touhou Labyrinth, is a fan-made Touhou Project-centric dungeon crawler with similarities to titles such as Wizardry or Etrian Odyssey. A large cast of Touhou characters are included, as well as a number of references and cameos of other role-playing, anime, and danmaku titles. A sequel, Labyrinth of Touhou 2 was released at Comiket 84.

After an extended stay at the Scarlet Devil Mansion, Reimu Hakurei has failed to notice that the boundary between Gensokyo and the outside world has begun to fall apart, and only realizes it when a huge rift in space opens above them. Accompanied by Marisa Kirisame, Remilia Scarlet, Sakuya Izayoi and Patchouli Knowledge, she begrudgingly goes to explore the mysterious dimensional rift so that she may continue lazing around without distractions.