If you want to make sure that game mode is on for a specific game you’re playing, simply follow these simple steps: With the latest updates, Game Mode will be turned on automatically on any PC and game that supports it. This means that any background tasks are a secondary priority and that the game will be running as smoothly as possible. It puts the game you’re running on the very top and takes up most of your computer’s resources to that game. What Game Mode does is to re-arrange your PC’s priorities.