Top similar games like OuterRealm:

Sophonce is a science fiction action horror first-person shooter that relies on philosophical undertones as the primary focus of the plot.

Boomer shooter about a robot obliterating aliens.

Uploaded is a fast-paced, parkour, online multiplayer, and single-player shooter created by only one developer where you play as a robot with a human mind uploaded to it.

Conflict Area is both a singleplayer and multiplayer game made by 2 developers.

Conviction is a dark fantasy, DOOM-like first person shooter where you play as a man with nothing left to lose as you face off an onslaught of cultists and demons in a world enshrouded by darkness. Prepare to show your conviction…

Perilous Warp is a fast-paced indie retro-shooter inspired by the classic 3D-actions. Communication with a distant space colony has been lost, and you bravely step into the teleporter with the desire for glorious adventures. But do not expect to win in a heartbeat!

In a galaxy far away a world is facing doomsday. As nations rise against each other the world is plunged into chaos. Many illegal groups such as gangs and independent militias and demonic cults take the advantage of the situation to expand. Your task is to assassinate a demon dubbed Lord of Terror.

A SHORT and sweet pixelated low fidelity 90s throwback hyper-fast action shooter. Survive and fight through a city overrun with manufactured monstrosities, biomass horrors, and a military authority trying to purge everything living. Featuring a heavy metal / techno soundtrack

Exocide from Apogee (Duke, Turbo, Prey, Max). Humans made superbugs to fight as soldiers. And the bugs turned against us. You're the last Handler, a human+AI robotic team with 4 total arms capable of welding 4 weapons, or one HUGE gun. Stop the super swarms before total human extinction.

Experience the Half-Life™ expansion packs like never before. Operation: Black Mesa features reimaginings of both Half-Life™ Opposing Force and Half-Life™ Blue Shift through two unique campaigns. How will you survive the Black Mesa Incident? It's time to choose.

FPS Multiplayer Team Deathmatch game.

Dino Trauma introduces you to a secret laboratory somewhere in eastern Europe where gore and dinosaurs isn't unusual thing. Retro FPS inspired by the '90s legends.

A thrilling, first-person, action-survival game set in the modern post-apocalypse. As mankind’s last hope, you’ll traverse the hospital ravaged by a lethal plague. the fight for survival gets progressively more difficult as the story unfolds. Be ready for violence

A new old first person shooter. Shoot cultists and escape from their compound before they summon a demon that ends the world.

Maze slaughter is a fast paced, rogue-lite first person shooter in a maze with piling bodies. It's like running man, in an american gladiator arena setting. Loud, gory and funny.

Days of War is an online FPS that re-imagines the team-based, close quarters, nonstop action of classic World War II multiplayer shooters.

While out on a relaxing hike in the woods, George loses his bearing and finds himself lost in the mountains. He now has one goal. Finding a way back to civilization and safety, and escaping the dangers of these lands.

Prepare for terror in this ground-breaking classic old-school FPS. Following the destruction of Time you are left to battle in this horrific hellhole of multilevel interconnected missions populated by gruesome grotesque creatures.

You are a TEC Engineer from Earth ordered to retrieve and return sensitive data from the TEC Mining Facility on Titan. On arrival, you discover that the facility has been invaded by beings from another realm. Contend with these abominations as you complete your mission and escape Titan.

Anger Foot is a lightning-fast action FPS where the only things harder than your ass-kicking feet are the ass-kicking beats.

MUTATION PHASE is a horror-shooter with a first-person view, which narrates the consequences of experiments with sound waves. You have to survive among hordes of mutants and get out of the danger zone.

The Undead is a first-person shooter that takes place in a cemetery. You must fight waves of zombies and skeletons. When you reach 30 kills you'll be confronted against a fearsome foe.

"Gunman Contracts - Stand Alone" is an action-movie inspired shooter playable both in VR and in Non-VR (First Person). As a professional hitman, the player takes on ruthless forces in the criminal underworld, bringing justice and order in the world beyond the reach of law - one contract at a time.

Multiplayer FPS Game in the style of old-school browser shooters set up in the fictional Cold War battlefields! The game feature fast-paced FPS gameplay with online players or AI BOTs, a huge variety of weapons, unique maps, the progression system, and many more features!

Enter a realm of nightmares and claw and shoot your way through hordes of bloodthirsty vermin and things that are much, much worse in this retro FPS

Unrecord is a single-player FPS that tells the story of a tactical police officer from the perspective of his body camera. As you work to solve a complex case, you'll need to use your tactical and detective skills to succeed.

90's-style first-person shooter set in a large alien base filled with angry monsters.

Putrefaction is a First Person Shooter with horror elements, lots of enemies and weapons, heavily inspired by old-school shooter classics.

Splatter is a first-person fever dream where you blast constantly-adapting enemies into neon sprays of pulp and slime. Enter a digital mindscape constructed by four anonymous administrators. Can you survive? Can you remain sane? Can you remain yourself?

All old-school FPS action. No Bullshit. Lots of blood & gore. Slaughter your way through nightmarish industrial mazes, transformed cityscapes and surreal alien structures to cut down the Growth in this ultraviolent, fast-paced, and merciless retro-styled first person shooter.

FIRESTORM DEADLAND is a first-person shooter survival horror game where you have to survive as much time as you can by defending the world against unHumans and unknown species in the year 2063.

Explore the gloomy rooms of a sci-fi base as a doomed marine, the sole survivor of the portal experiment. Save humanity as you did in the 90s with your trusty shotgun, make your way through ominous corridors inhabited by the shadows of sinners and evil spirits.

Prodeus is a first-person shooter of old, re-imagined using modern rendering techniques and technology. Experience the quality you’d expect from a modern AAA game, designed with retro aesthetics and gameplay that invoke the tech-imposed limits of older hardware.

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!