Game Tree TV VS Gaikai

Playfire - Playfire is the global community for gamers.

Gamefly - Leasing computer games used to be a foundation of computer game society.

StreamMyGame - With close proximities to OnLive, StreamMyGame doesn’t work like it, but it allows users to play whether Windows-based games they have on their systems from anywhere in the world on their Windows as well as on Linux system.

Ubitus - This one is the world’s first cloud-based gaming portal that supports MMO titles and in-app purchases.

Parsec - Streams games locally or over the internet

Vapor — LÖVE Distribution Client - Vapor is a client for installing video games made with the game engine LÖVE.