Each month, Microsoft's Xbox Game Pass reshapes the boundaries of what it means to own a game — offering access rather than permanence, and rotating its catalog like a living library that both gives and takes away. This September, the service adds some of its most anticipated titles of the year, including a franchise prequel, a beloved spinoff sequel, and an ambitious survival MMO, while simultaneously retiring eight games from its shelves. The gesture is familiar but consequential: subscribers are invited into new worlds even as older ones quietly close their doors.