One major advantage to playing Stadia is that it does not require the purchase of expensive gaming hardware but still delivers top-quality games across many devices. Stadia requires you to purchase games from its storeto stream them. The base service is free, but the Pro tier version offered by Google requires a monthly subscription of$9.99 per month after a one-month free trial. A Stadia Pro subscription allows subscribers to stream games in 4K resolution, 5.1 surround sound, and provides a collection of free games users have access to while subscribed.