Zombie Apocalypse Tunnel Survival Multiplayer free to play against much enemy AI like soldier and realistic zombie, 5 game modes like gun game, survival, TDM, DM and much more, multiplayer play with friends and camo + attachments at each gun. Have fun here.
WASD - move
Mouse - shooting, aim, look around, change gun
SPACE - jump
TAB - menu
SHIFT - run