Cemu is a Wii U emulator
Emulator of x86-based machines based on PCem
A cross-platform PSP emulator
Open source framework simplifying the creation of C++ applications
The Playstation 2 emulator
Teo is an emulator of the Thomson TO8 microcomputer
A free, cross-platform emulator for GW-BASIC, PCjr & Tandy BASIC
An Open Source DOS emulator to run old DOS games
DROCK OS is an Android operating system based on Android x86
The Continuation of Cr OS Linux Now an Updated DIY Distro Fan Page
A portable, open-source (GPLv2) 8086 PC emulator.
Atari 8-bit disk emulator
A framework for developing emulators
higan is a multi-system emulator focused on accuracy & preservation
Minimal Linux Live (MLL) is a tiny educational Linux distribution
A portable library and tools for archiving images of Atari 8-bit tapes
Remix OS Player is based on Android Marshmallow.
Battlefield bad company 2 Master server emulator + Server R34
A virtual DOS machine for x64 Windows which works like ntvdm
ping pong game for mobile (Adobe AIR)