BizHawk is a multi-system emulator written in C#
Cemu is a Wii U emulator
cycle exact emulator
Portable ZX-Spectrum emulator based on UnrealSpeccy 0.37.3 by SMT
A portable library and tools for archiving images of Atari 8-bit tapes
Software development for 4Mb portable, using Z80 CPU and AA batteries
A simple and fast frontend for the QEMU Emulator - Freeware.
Multi-System Emulator
Slows down any given Windows process (written in C#)
Apple II GS emulator based on Kent Dickey's KEGS
A Raspberry Pi emulator for Mac OS X and Linux
Highly portable Gameboy Color emulator
Portable Pokémon Mini Emulator
Portable Sega Genesis/Mega Drive emulator.
Complete, Fast, Accurate, Game Boy/CGB/SGB Emulator.
Scriptable frontend for media applications.
A NeoGeo emulator for BlackBerry 10.
A NeoGeo emulator for the BlackBerry Playbook.
Entex Adventure Vision emulator with debugging capabilities.