Cemu is a Wii U emulator
Mesen is a cross-platform (Windows & Linux) NES/Famicom emulator
Simple 8-bit Assembler Simulator with Angular.js
WebSocket emulation and Javascript client
The quadplay fantasy console
MedGui Reborn is a frontend (GUI) for Mednafen multi emulator.
PlayStation 2 emulator for Windows and Linux
Apple 2 and Agat 7/9 emulator
Portable Sega Genesis/Mega Drive emulator.
All information from hardware sensors on your Mac
Environment to experiment the system on simulated and real networks
A free, cross-platform emulator for GW-BASIC, PCjr & Tandy BASIC