SAS: Zombie Assault - action game

SAS: Zombie Assault is a free online flash game of the category action games.

SAS: Zombie Assault is an action game all about surviving against waves of undead monsters. Earn money to upgrade your defenses and your guns. As levels progress, the waves of zombies become harder and harder to repel. Can you make it through all twenty gruelling waves of zombie assault?

Use W, A, S, D or arrow keys to move and the mouse to point and shoot.
Q to select previous weapon and E for the next one. R to reload weapon.
F to repair barricade. Space bar to buy upgrades. M to mute sound.