Z Arena is an FPS survival game where you stand as the last line of defense against relentless waves of zombies. Featuring classic wave-based gameplay across various maps, you’ll face ever-increasing challenges while striving to survive.
There are no limits—you can keep slaying zombies as long as you want. Level up to unlock more powerful weapons and upgrade them to take down enemies faster. The game also offers a “Missions” mode, with focused challenges that test your skills in different scenarios.
https://store.steampowered.com/app/1411460/Z_Arena/