Xtreme Zombie FPS Good vs. Bad Boys: Shooter There are realistic AI enemies like soldiers and zombies, 5 game types like the gun game, survival, TDM, DM, and others, and multiplayer. The game is free to play. You can play alone or with other people on 40 levels. Enjoy yourself here.
WASD - move Mouse - shooting, aim, look around, change gun SPACE - jump TAB - menu SHIFT - run