Cemu

This is a software to play Nintendo Wii U games on your PC.

To run games with good speed on this emulator, you need a PC with spec like this : quadcore processor or better with high IPC(Instruction per clock), 8 GB RAM or more, GPU with OpenGL 4.6 support(AMD Radeon HD7000 series and above, Nvidia Geforce GTX400 series and above), Windows 7 64 bit or higher.

For compability, this emulator can run many games, but some games aren't perfectly playable yet.

All images from :
http://cemu.info/