Yanshan Software (烟山软件) was a company based in Fuzhou, China. It is known as the first Chinese Famicom game developer, although most (if not all) of its games were hacks of Japanese games.
- Super Contra II, aka 93 Super Contra ("Fuzan Dayou" appears (vertically) in the ending of this game; Fu Zan was the head of Yanshan Software, while Dayou is probably another staff member)
- Tank series (hacks of Namco's Battle City; one version, Tank A 1990, is probably more common than the original on multicarts)
- Yanshan Chess
- Fu Zan worked as a supervisor on a number of early Waixing games.