When your Xbox Game Pass subscription expires you lose access to all Game Pass games that you haven't purchased separately. The games will still appear in your library but will be locked — you won't be able to launch or play them until you resubscribe. Your game saves, progress, and achievements are kept even after your subscription ends, so if you resubscribe later you can continue exactly where you left off. Any games you purchased at a Game Pass member discount while subscribed are yours to keep permanently regardless of your subscription status. If a game you were playing leaves the Game Pass library while you're still subscribed, you can purchase it at a discounted price before it leaves.
