by Team Shanghai Alice, Twilight Frontier, Phoenixx Inc., SUNFISH Co., Ltd.
Genres:Adventure, Indie, Hack and slash/Beat 'em up, Fighting
Themes:Action, Fantasy
Game modes:Single player
Story:Touhou Gouyoku Ibun: Sunken Fossil World is the 17.5th installment of the Touhou Project, created by Team Shanghai Alice, with Twilight Frontier's collaboration. The game is described as a "horizontal side-scrolling danmaku water action game" on the official website.