Though it didn't quite meet some fans' expectations, Back 4 Blood still sold incredibly well, with over 10 million players having logged in by February 2022. And despite some middling reviews, Back 4 Blood is still a solid 4-player co-op horde game, with a lot of potential still left to realize. With its first major expansion on the way, Back 4 Blood may inch just a little closer to being the Left 4 Dead successor that some had hoped for.