Games like Purge Directive

Games like Purge Directive include Left 4 Dead 2, Left 4 Dead, Back 4 Blood, Counter-Strike 2, and Killing Floor. We matched them by the tags players give Purge Directive on Steam (Zombies, Online Co-Op, Arena Shooter, Boomer Shooter, and FPS): closest matches first, and among equally close ones the better-known games.