Top similar games like Room Invaderz:

Based on the community award-winning Doom2 mod with the same name by the same creator, UNLOVED is reimagined in the Unreal Engine 4 to bring forth the unspeakable terror in new ways. Play coop with your friends, increase your skills, mod your weapons and face the horror that this unearthly place holds...

Stay close together and use teamwork to fight through hordes of infected and other mutated freaks while navigating between saferooms.

Winner of 2010′s Make Something Unreal contest, The Haunted: Hells Reach is a fast-paced horror game where your goal is to liberate cursed places and survive the assault of Hell.

No More Room in Hell 2 is an intense 8 player zombie shooter. Overcome the endless undead. Avoid infection. Survive hell together.

Bloodlit is a hardcore first-person shooter designed to unite slow-paced oppressive survival horror tension with fast-paced reflex-driven close-quarters combat. Carve your path through the blood and ruin. Regret is for the dead.

Take on a city overrun by zombies with 1 to 4 players online — co-op or PvP! Hold the line against running, leaping, spitting hordes. Fight by day, hunt in the dark of night. Tear off limbs and unlock cosmetics with every kill. Stand together... or hunt each other down.

Back 4 Blood is a thrilling cooperative first-person shooter from the creators of the critically acclaimed Left 4 Dead franchise. Experience the intense 4 player co-op narrative campaign, competitive multiplayer as human or Ridden, and frenetic gameplay that keeps you in the action.

A fast-paced sci-fi shooter where a failed experiment unleashes mutated horrors inside a secret research facility. Armed with experimental weapons, you must fight through swarms of twisted enemies, and survive the collapse of a world-breaking project.

Escape together or die alone. A relentless creature is hunting you in this intense co-op bodycam horror experience. Communicate. Stay quiet. Survive. Every move matters. Every sound could be your last. Made by one developer.

6-player co-op survival horror at its finest! Free updates, free special events and a ridiculous amount of fun!

Zombiemachia offers a mature and intense experience for fans of carnage. Face endless waves of zombies with weapons, traps, and dismemberment, all in a realistic environment.

In KILLING FLOOR 2, players descend into continental Europe after it has been overrun by horrific, murderous clones called Zeds that were created by rogue elements of the Horzine Corporation. 6-player Co-Op & 12-player VS Zed-slaughtering mayhem.

F.E.A.R. 3 delivers all the hallmarks that define the F.E.A.R. brand: terrifying paranormal experience, frenetic combat and a dramatic storyline.

World War Z is a heart-pounding coop third-person shooter for up to 4 players featuring massive swarms of hundreds of zombies, focused on fast-paced, gruesomely spectacular action.

A strange fog rise up. You grabbed your shotgun when you heard a voice outside. Wtf Zombies. Try to stay alive for 5 minutes and kill them all to win and unlock next difficulty level.

A co-op horror FPS about daring heists in a city full of zombies. Because, you know, they don't need money anymore, but you do! Multiple ways to approach each heist and randomly generated elements await you. Gather your team and get ready to rob the dead!

Space Jammed is a co-op (up to 4 players) sci-fi action horror game about smuggling cargo through a chaotic wormhole. Keep your spaceship barely functioning while hordes of aliens tear it apart and deliver the goods in one piece… or whatever’s left of them.

A co-op zombie horde shooter set in a West Yorkshire town gone very, very wrong. Fight off waves of the undead, collect coins, buy bigger weapons, and uncover the dark secret rotting at the heart of Brumley. Up to 8 players. No survivors expected.

A world where the living envy the dead. Cities are plunged into darkness, the world into silence. You are part of the extraction team, but this time you are trying to save not just people, but humanity itself. Gear up, trust your comrades, and dive into the darkness to save humanity!

London is falling. Are you prepared? The Last Blight is upon us. It was foretold. For the second time in history, a great plague has shrouded London in a fog of death. Big Ben tolls as thousands of unprepared die, or worse, are infected by a sickness more gruesome than death.

First-person survival game set in the early stages of an apocalypse. Explore urban areas filled with brainless demons. Find what you really want or become one of THEM.

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.

Resurrection is a wave-based indie FPS by Bad Dev Studios. Fight endless, aggressive zombie hordes in a burning city. spend points at the random weapon box for better firearms, manage your ammo, and use precision sniping to survive increasingly difficult waves.

This game is a roguelike where you continuously fend off zombies by upgrading your gun. Survive the waves of zombies storming the house with your allies! As the days pass, more zombies will appear, including powerful ones, but you will grow stronger too.

Chased by Darkness is a 1-4 players co-op survival horror. Your mission is to face supernatural entities and banish them to the spiritual plane. Explore, fight enemies and don't let the darkness reach you.

Tear through endless waves of supernatural enemies in this co-op horror horde shooter. Play solo or with up to 4 players, unleash god-like Miracle powers, supercharge your arsenal, and survive devastating boss encounters on Sker Island.

Ghosts prey on the living inside the haunted mansion of a long dead electricity tycoon. Dead Realm is a creepy, multiplayer action game with beautiful, immersive environments. You can play as either a Ghost or a Human character and work with your friends to run, hide, survive… or die.

Cry of Fear is a psychological single-player and co-op horror game set in a deserted town filled with horrific creatures and nightmarish delusions. You play as a young man desperately searching for answers in the cold Scandinavian night, finding his way through the city as he slowly descends into madness.

Do ghosts exist? What about Bigfoot, Chupacabras,Rake or Skinwalkers? And how will we ever know? You play as Gordon Davis, a scientist,a traveller and an explorer of unknown creatures and unusual events.

Cursed Dawn is a wave survival FPS featuring complex maps packed with secrets, dynamic spawns, and hordes of zombies to turn into gory mulch. Plan your defense, stay on the move, and master the maps. Remember: Nowhere is safe, death is assured, how long until you're zombie chow?

You wake in an open cell with no memory - only power. Escape the prison and the hospital above it: crack codes, solve the facility's puzzles, arm yourself and cut down anyone in your way. But the logs left behind reveal the truth - you're not the prisoner. You're what they were caging.

City Massacre is a free-to-play zombie-survival FPS. Take part in survival competition in the locked city. Play solo or as a team, earn money and popularity. To win in the “City Massacre” means to get right for worthy and carefree life.

Fight alone or beside others trapped in the same nightmare. Survive waves of deranged cultists and grow your mischief of rats. The longer you stay, the more you can save, and the more you risk losing before reaching Traang, Milo’s Arcade.

What will you do when the zombie apocalypse comes, are you ready to tackle it right now and stay face to face with all the horrors that will appear?

Play alone or team up with others and try to survive while a demon and its minions try to kill you. Your goal is simple. Escape. This might sound easy, but dealing with evil entities is a dangerous business!

Fight for your life in the INDIE SCI-FI FPS game fit for both casual and hard-core gamers with a passion for hunting down hordes of zombies. Prepare yourselves for the incoming nightmare!