FakeNES is a portable, Open Source NES emulator which is written mostly in pure C, while using the Allegro library for multi-platform capabilities. Currently supported systems are Windows 9x/2000/Me/XP, 32-bit DOS, Linux, FreeBSD, QNX, BeOS, and Mac OS X. However, it should run on any system that Allegro supports. This includes, but is not limited to: any version of Windows released after 1995, any 32-bit DOS compatible, and many POSIX compliant systems and UNIX clones such as Linux, FreeBSD, QNX, BeOS, and Mac OS X.