Playfire - Playfire is the global community for gamers.
LaunchBox - LaunchBox is a portable, box-art-based games database and launcher for DOSBox, emulators, arcade cabinets, and PC Games. Download it free!
Gaikai - Gaikai is a company which provides technology for the streaming of high-end video games.
Playnite - Source code generated using layoutit.com
Parsec - Streams games locally or over the internet
Photon Game Manager - Photon is an advanced game launcher that is designed to make your game collection look amazing.