An Xbox Game Pass gives you access to an online library full of games that you can download and play for free on your Xbox One! You can play State of Decay 2 or Sea of Thieves, but also Crackdown 3 of Forza Horizon 4.
Xbox Live Gold
An Xbox Live Gold subscription gives you access to the online features of the Xbox network. Purchasing a subscription for Xbox Live Gold has many advantages, such as monthly free games and access to online multiplayer game sessions!