Be careful to save your game before you quit or you will lose your game progress or the game's saves will not cloud-sync to the digital store.
- On macOS press Command-Q to quickly quit a game.
- On Windows, press ALT-F4
- On SHIELD TV hold the Start button on the NVIDIA gamepad, or pressing two fingers on the touch screen. The OSC has an option to Quit which takes you back to where you launched the game.