This allows you to enjoy the latest PC and console releases, anywhere, on practically any modern hardware. Since the game is running over the internet, you can theoretically use cloud gaming over wired, wireless, or cellular connections. This could be a gamepad or console controller linked to your smartphone, or it could be a more traditional PC gaming control scheme of a keyboard and mouse.
You'll need some method of controlling the game connected to your device of choice. Related: What Is Cloud Gaming, and Is It Really the Future? This means that the game doesn't run locally on your device (for example, a smartphone) but instead runs remotely in the cloud. Cloud gaming allows you to use just about any device with an internet connection to stream gameplay over the internet.