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.

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…

A deadly virus, designed to reanimate the dead and integrate them with cybernetic enhancements, escapes containment and turns the facility's inhabitants into relentless, cybernetic zombies.

Waking Nitemare: A newtro FPS with modern twists. Dash, heal with melee headshots, use bullet time. Face unique bosses, find upgrades. Classic shooter action meets innovative mechanics. For retro fans and newcomers alike.

BL0W-UP is a single-player movement shooter inspired by the best shooters of the '90s. Dive into a world of vibrant visuals and colorful gore, crush your enemies efficiently and get to the end of the stage as quickly as possible. Are you ready to become the ultimate avenger?

PURE FUCKING RAGE, A game where you shoot enemies, collect their blood, and grow stronger!

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!

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.

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.

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.

FPS Multiplayer Team Deathmatch game.

Explore a virtual dungeon where each room is an entire game world, each with its own characters, gameplay, and themes. Dive deeper and deeper, unlock more and more worlds, and be the first to reach the Core!

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

Sinned Arena is a classic arena shooter inspired by timeless 90s games. You are trapped in Hell with other unfortunate souls, fighting among each other for demons twisted pleasures. Fight for your way out this dark place but beware, demons aren't there just to watch.

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.

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.

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.

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.

Become the ultimate badass in Trepang2: A gory, action-packed FPS set in the near future. Unleash all hell on your enemies, dodge bullets and leave a trail of destruction in this hardcore and frenetic shooter.

BF:RI Is a Hardcore Tactical Shooter depicting the ongoing Burkina Faso Insurgency. You are CIA Special Operations Group tasked with hunting down ISIS insurgents

An action-packed FPS where you defend your trench against waves of attacking enemies by utilizing a large selection of modern (and not so modern) military weapons, features both single-player and two player online multiplayer (peer-to-peer).

Survival Horror set on a sinister island. As a lone forest keeper, you'll unravel its grim secrets from the eerie backstory of a royal vacation home turned nightmare. Journey through the changing seasons, from day to night. Confront nightmarish abominations that emerge in the winter cold.

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.

CyClones is a first-person shooter (FPS) classic from the 90s that challenges players to explore maze-like environments and take down flesh-steel monstrosities using an impressive arsenal of hi-tech weaponry.

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.

Nostalgic multiplayer fps game you used to play in the 2010s! Play online with bots or online with friends, collect weapons, and get the best score! Feel the energy of the fast-paced gameplay, huge amount of maps and items and become legend!

Multiplayer first-person shooter skibidi toilet game. Get your friends and have fun! Or play by yourself and kick ass of the opposite faction, who am I to tell you what to do?

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

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?