The spiritual successor to the Left 4 Dead series from the same developers, Back 4 Blood‘s launch was Turtle Rock’s most successful new IP since parting ways with Valve - more than doubling the launch numbers of their last triple-A game, Evolve, back in 2015.īut since debuting in Steam’s top 10 most played games this October, Back 4 Blood has seen its player count decline by more than half – dropping to a peak of only 30k players over this past Halloween weekend when it should have performed much better. Just a little over two weeks ago, Turtle Rock Studios’ launch of their new team-based zombie shooter, Back 4 Blood, brought in an impressive peak of 66k concurrent players on Steam.