Touhou Project

The Touhou Project is a doujin video game series created by Team Shanghai Alice, beginning in 1995. View more on the Wikipedia article.

It is known for a great deal of fan works based on its characters and settings. In particular, the unofficial games Koumajou Densetsu: Scarlet Symphony and Koumajou Densetsu II: Stranger’s Requiem take heavy inspiration from Castlevania.