Rocket Leaugue with Xbox Live Gold offers a download of Rocket League for Xbox One for free when you purchase an Xbox Live Gold 3-Month Subscription for $24.99 through your Xbox console. That's a savings of $20 for this popular game.
Note: You can also get this deal when you purchase a physical 3-month subscription card from a local retailer. (A download code will be printed on your store receipt.) It's unclear if purchases made from online retailers will include a download for the game. Deal ends June 30.