In Zombie horde 3, the player lost in a city full of zombies and is trying to get out. There are various places to go to, including garages to take shelter and buy stuff, and buildings to meet people.

Further in the Zombie horde 3 game, zombies will get upgraded and the player will need better weapons to defeat them and armor to increase the max. HP. The player will need a rocket launcher to blow the bricks blocking the bridge to escape from the town.

There are also jobs (white arrow); the player has to defend an area for a time limit; the money gained will determine on how many zombies killed and time the player survived.

The player will also need to buy ammo for guns and armor for max. HP to survive deep in the game. One of the best guns is the sniper rifle, since it can cut through multiple enemies. The car is a good weapon too, since it can run over zombies and go really fast.

At night, there will be evil mutated zombies that have 3 times the power of the first zombies, so go to the garage to go to the next day. There is also survival mode. The player has the weapons; they got from the story mode and survive endless hordes of zombies day and night.