Top similar games like Holiday Haywire:

First person wave based shooter where you must survive, alone or with a friend. Kill and earn gold to buy weapons and experience to level up as the waves becomes harder.

O.A.S.I.S is a simple wave-based zombie survival shooter that combines the best elements of classic arcade-style shooters with the atmosphere of an alternate 80's dystopian world. Just relax and have some fun -- either solo or with up to 3 friends.

Escape From Zombies is played alone or in cooperation, on a map where the player(s) must repel waves of zombies. It should be noted that the game does not end until all players are dead, the main goal is to beat the record of survived round.

Multiplayer/Singleplayer shooter in low-poly style. NPCs sell weapons, perks, and health packs. Different zombies, handmade maps, unlockable barriers, 34 weapons. Zombies spawn endlessly. And more!

Not Deat Yet is a 1-4 player co-op, fast-paced, rogue-lite FPS, with elements of deck-building and strategy that will test your skills in creating your own build while having to manage your resources and survive restless waves of zombies.

Fight against hordes of zombies in this physics-based co-op game loaded with humor, and loads of customizable weapons.

1-16 Player COMBAT ZONE & 1-4 Player COOP Zombie Wave Survival in Comic style. Singleplayer and Multiplayer Playthrough. Get ready for GUNWATCH: Conflict Survival!

Survive the living dead for as long as you are able! Room Invaderz is a wave-based survival game where you and your comrades kill zombies, earn points, and do your best to upgrade your arsenal to see how long you can delay the inevitable.

Mutant Ops is a low poly co-op shooter. Go in alone or with friends and survive endless waves of mutants and monsters.

Hellbreach: Vegas is a Wave-based First-Person Shooter for 1-4 players, made with passion by a one man dev team! Set your loadout, kill, and earn cash. Take a spin on the various slot machines and level up to improve your survival chances. Are you ready to try your luck?

Grab a weapon, demolish your enemies, level up, become more powerful, let the gore flow, let the limbs fly. BrainBread 2 introduces a zombie fps mixed with RPG / Arcade elements, the game is very action-packed and generally fast-paced.

It's an intense cooperative survival shooter that pits a team of up to five players against endless waves of zombies. As the last line of defense in a post-apocalyptic world, players must work together to strategize, survive, and take down the hordes.

Operation Endpoint is a wave based survival game. Survive ever increasing rounds against infected, earn cash to buy barricades, weapons, and more.

Armed militaries are requested to clean an area infested by zombies. On each round you don't now if you will be a zombie or a soldier, so use the skills and items that was given to you and keep alert.

Defend, survive, unlock, interact, upgrade and eliminate all zombies. A first person shooter game against zombies.

Darkness is coming. How long can YOU survive? Build your base by day, defend it by night. Play in online or local co-op. Stay alive as long as you can.

Sin Survivor is a wave-based, first-person co-operative or single-player shooter based in a post-apocalyptic world overrun with blood-hungry, satanic demons.

A place where wishes come true! You just need to protect the obsidian portal from zombies. Mine resources with your pickaxe, build traps, and put them to use — let them grind the zombies into a juicy green porridge! Funny meme endings!