https://wccftech.com/back-4-blood-xbox-game-pass-day-1/

Back 4 Blood, Warner’s co-op zombie shooter from Turtle Rock Studios, is said to be launching on Xbox Game Pass on Day 1.

The spiritual successor to Left 4 Dead received a new trailer yesterday alongside an open beta date, and according to a game description on Reddit, the title will be arriving on Microsoft’s gaming subscription service on launch day – October 12th (as reported by Video Games Chronicle). A live countdown including the game’s description allegedly went live early and made mention of the game arriving on Microsoft’s service.