Contract Killer: Zombies is a first-person, stationary shooter that requires players to primarily kill zombies.

Besides that main objective, players can be protecting survivors or acting as support when characters are retrieving supplies. Even though mission objectives differ, the end result is players shooting zombies. Players will choose and select missions, though the setup is very linear, to gain experience.

Visually Contract Killer: Zombies is a good looking game. The model for the main character the player uses is detailed, even though only the hands are really seen. The other models do not fare as well and result in pixilated and blocky humanoid characters. The models for zombies are passable, but they do suffer a bit with details.

What Contract Killer: Zombies lacks in visuals, it gains in the amount of animation on-screen. Contract Killer: Zombies can put a lot of characters on-screen without suffering much lag in gameplay. Though repetitive, Contract Killer: Zombies can have moments where the gameplay feels gratifying.

Players can purchase new weapons with money earned in missions or participate in freemium content to purchase weapons quicker. Unfortunately, Contract Killer: Zombies almost forces players to pay for new weapons with their “suggested” weapon for missions.

Contract Killer: Zombies is fun, but can quickly lose the addictiveness when reminded to participate in in-app purchases for new weapons.

Contract Killer: Zombies is another entry into zombie games that is fun at first, but pushes buying in-app too often.