doujin game
n.— «Doujin games are basically home-made videogames programmed, coded and created entirely by hardcore fans and game enthusiasts, but contrary to the perception of something “home-made,” they look and play like professionally produced arcade games.» —“Rockin’ Android to release doujin games for the PC” Otaku News Mar. 25, 2009. (source: Double-Tongued Dictionary)