Emulator of x86-based machines based on PCem
RetroArch is a frontend for emulators, game engines and media players.
Qiling Advanced Binary Emulation Framework
Versatile Commodore Emulator
a multiplatform, full-featured GameBoy classic emulator
Teo is an emulator of the Thomson TO8 microcomputer
Archive of the Amiga emulator UAE
DOSBox fork for embedded devices
An editor for NES ROMs in the iNES format.
Cross-platform Apple //e emulator