RUST RIG
Build the tower. Upgrade everything. Keep rolling.
A free zombie tower survival game in your browser
Rust Rig puts you in charge of a rolling scrap tower. Before every level you visit the garage: add blocks, give each one a weapon and a charging special, and upgrade damage, fire rate, armor and power. Then hit the road and fight through waves of climbing zombies, grenades and bosses. Lose and you keep your money, so you can upgrade and try again. Clear 40 levels in 8 wild locations. Works on desktop and mobile, with no download and no sign-up.