Shoot through hordes of zombies, ankle-biters, and lichs to survive as long as you can.
This game has a fun aesthetic along with polished mechanics similar to AAA games. Every gun is something unique that you most likely haven't seen in other games. They range from the starter weapon, a blowgun to a potato shotgun, even to a reverse gun. Each gun feels unique and has its pros and cons.
The prison/map has different path options giving good replay-ability.