Google has announced its new video game streaming service called Stadia that offers games on demand. Stadia can be played across numerous devices and you can stream in 4K at 60 FPS. Google will offer its own Stadia controller, but you will be able to use your own personal controller as well. Stadia will support cross-platform play and cloud saves for game states and save files. Right now, Stadia does not have a price but it will be available later in the year.