Turtle Rock Studios and 2K Games will be having another closed beta test for the servers for their new title Evolve coming out on February 10, 2015. This test is to check for issues with matchmaking and overall server stability to make sure the game is ready for launch and to make revisions before the Day 1 patch. This invite is open to all who either have Left 4 Dead, Left 4 Dead 2, BioShock Infinite, or an Xbox Live Gold account if you don’t and signed up for the last beta test you will receive an invite.(Or if your on Xbox One from the XBLA) The development team is trying to get as many people on the server as possible also not that will need a Steam account and the Steam client or an Xbox One. (http://store.steampowered.com/) Currently there is there is no announcement for a PS4 stress test or beta at the current time.