Nestopia - A portable and cycle-accurate NES emulator written in C++
WinUAE - WinUAE is a Windows port of the emulator UAE.
FCEUX - FCEUX is a Nintendo Entertainment System (NES), Famicom, and Famicom Disk System (FDS) emulator.
Amiga Forever - The official Amiga preservation, emulation and support suite with games, demoscene, history and culture.
puNES - PuNES is a high accuracy NES emulator.
Amikit - AmiKit turns your computer into legendary Amiga.