KOF 91 (aka KOF Linux or FFE) is a 2D Game Engine like Street Fighter but everything is easily customizable so you can easily add characters & Backgrounds, etc or even make your own game. Read the docs for more precisions.

   KOF 91 was first developed by Moah on Win32 in the early 98 (see ). The linux version was developed by Duncan Mac-Vicar P. and Ric's Brain (who add patches before). There's a GP32 port made by Thor ( ). Ric Leite still develop new features, under KOF2003 project (see centurion forces site for news) and a new OS independant version is still in developement (2004) by Laurent Dufour (zesensei) with new features.