Game Boy Advance, Game Boy, Game Boy Color, and DS Emulator
BizHawk is a multi-system emulator written in C#
Tiniest x86-64-linux emulator
Qt-based Nintendo Entertaiment System emulator and NSF/NSF2/NSFe Music
A portable library and tools for archiving images of Atari 8-bit tapes
Software development for 4Mb portable, using Z80 CPU and AA batteries
Set of BIN/CUE<->VCD conversion tools for FreeBSD & GNU/Linux
Emulator of the 8-bit computers Sharp MZ-800 / MZ-700 / MZ-1500
Versatile contactless smartcard emulator compliant to NFC
iPhone 11 emulated on QEMU
Portable Pokémon Mini Emulator
a very fast full system simulator