Games like Milkman Mayhem

Games like Milkman Mayhem include Black Mesa, Half-Life 2, Starship Troopers: Extermination, Half-Life: Alyx, and Half-Life. We matched them by the tags players give Milkman Mayhem on Steam (FPS, PvE, Singleplayer, Aliens, and 1980s): closest matches first, and among equally close ones the better-known games.