Gunrox - Zombietown

You move your character with the keyboard and aim with the mouse, firing at zombies as they shuffle toward your position. The core loop involves collecting cash from defeated enemies to buy better guns at a shop between rounds. You might start with a pistol, but you can upgrade to shotguns or automatic rifles. The pacing is relentless; the zombies keep coming, and managing your ammo and positioning becomes critical. The game feels tense and immediate, a constant scramble to fortify your firepower before you are overwhelmed.