BizHawk is a multi-system emulator written in C#
Game Boy emulator written in Python
Write your own virtual machine for the LC-3 computer!
Python front end for MAME that can run in Linux, Windows, and MacOS
Multi-platform Nintendo Game Boy Color emulator written in Go
GUI Launcher to launch MAME Emulated TI-99 16bit Computer Systems
Simple way to check root/virtual app/emulator/xposed framework
Edit, migrate, manage WoW accounts and characters
Scriptable frontend for media applications.
Cross-platform Apple //e emulator
Java-based instruction level emulator of MSP430. Code on github.