Top similar games like OSIRIS:

A fast-paced First Person Shooter inspired by the classics of the genre. Shoot and kick your way out of the war-torn planet to survive the attack of the space undead. Zombie blood has never splashed so good!

Relive Half-Life.

Cosmic VR Action Horror focusing on intense shooter action, twisted sci-fi anthology stories and disturbing atmospheric dread. You’re marooned alone in the Bermuda triangle of space, filled with ancient derelicts and ravenous aliens: By Grit Alone, you will survive.

Gynophobia is a horror themed shooter about abnormal fear of women. Gynophobia is using classic first person shooter gameplay, to convey story about Mark, who is suffering from different phobias, including abnormal fear of woman.

Sewer is a survival horror experience that drags you beneath Arras in 1915 as a British spy trapped in a cursed underground. Navigate shifting tunnels, manage scarce ammo, and face what should have stayed dead as you fight to escape the darkness.

DelayedSun is a third-person shooter survival horror game set in a post-apocalyptic world filled with flesh-hungry zombies. Craft items, gather resources, upgrade your skills and prepare your gun to fight!

To escape this terrifying hospital, you must leave your fears behind. Can you do it? Explore, face zombies, use weapons, avoid traps, and react fast to survive.

The space station has undergone an unknown contamination from space, the previously unknown X virus mutates, almost the entire station crew is infected, you need to stop the army of mutants before they break through to Earth and doomsday began!

Enter this first-person shooter with dark and realistic scenarios, use your shooting skills to kill all the enemies and survive. Explore the scenario and collect all the resources you can because you will need them to get out alive.

Red Lake - horror shooter with elements of quest.

Survive or die ! Experience survival horror full of puzzles while escaping between the streets of Algeria after zombies invasion . Suffer to protect your life in situations never attempt them before with first person perspective and powerful actions that make it more realistic then ever

Hell’s armies have invaded Earth. Become the Slayer in an epic single-player campaign to conquer demons across dimensions and stop the final destruction of humanity. The only thing they fear... is you.

Wolfenstein®: The Old Blood™ is a standalone prequel to the critically acclaimed first-person action-adventure shooter, Wolfenstein®: The New Order. This adventure spans eight chapters and features the hallmarks of MachineGames – thrilling action, immersive story, and intense FPS combat.

MIST SURVIVAL is a Single-player, survival stealth sandbox game Players will experience the Apocalypse stimulation in the form of virus pandemic, the players have to deal with it to survive through the difficulties such as finding shelter and food, threats from the environment and climate: wild animals, bandits, infected, and dense mist t

In this game you have to fight your way through hordes of zombies in search of a safe place.

In this retro PS1/PSX style game. Play as a investigator stranded in a zombie and monster filled mansion and forest. You will encounter horrifying creatures ready to devour you alive. All while trying to make your escape and discover the terrifying truths before it's to late. Will you survive?

Buried Alive: The Annihilation is an immersive and intensive VR shooter. Survive and uncover the truth in the Annihilation!

You are following the story of security guard working at power plant which uses experimental technology, designed to draw electricity from atmosphere. One day you start hearing strange stories about anomaly sightings, soon you witness something terrifying...

Dead Effect 2 is the newest addition to the acclaimed Dead Effect franchise. This action sci-fi shooter is looking to push the boundaries of first-person shooters to new levels with slick graphics, rich narrative and RPG elements.

【Can you live with this fear?】 A horror game developed by a Japanese high school student all by himself is coming to Steam! Escape the monster's pursuit in the creepy mansion, sometimes using weapons to fight back and find the key to escape!

You & your friends are the deadliest killers in the galaxy – the US Colonial Marines. It’s up to you to not just survive, but wipe out the Xeno infestation.

Humanity's ambition for the stars turns into a brutal fight for survival. The crew of The SS Destiny discovers a bacteria that turns their mission into a nightmare. Find resources, battle infected, and escape the doomed ship as it spirals into chaos.

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.

You are Isaac Clarke, an engineer on the spacecraft USG Ishimura. You're not a warrior. You're not a soldier. You are, however, the last line of defense for the remaining living crew.

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!

Kyle wakes with a headache unaware he has survived a helicopter crash in Nannestak Norway. Alone on a farm he suddenly finds himself in a space suit. A flash of light transports him back to a mission he must complete. As he progresses he experiences flashbacks uncovering pieces of his lost memory,

Sinister Outbreak is an action-horror game where you wake up in a zombie-infested lab. With no memory and danger around every corner, fight to survive, uncover the truth, and escape the nightmare.

Three years after the Necromorph infestation aboard the USS Ishimura, Isaac Clarke awakens from a coma, confused, disoriented, and on a space station called The Sprawl. Explore this world and its zero-g environments to discover the truth about the Unitology and its role in the Necromorph epidemic.

Now includes all three premium DLC packs (Unto the Evil, Hell Followed, and Bloodfall), maps, modes, and weapons, as well as all feature updates including Arcade Mode, Photo Mode, and the latest Update 6.66, which brings further multiplayer improvements as well as revamps multiplayer progression.

As part of the elite Rhino Squad, you must spearhead Earth’s military invasion of a hostile alien homeworld. But, in this desperate war for humanity’s survival against an unrelenting enemy, you may discover that the only way to defeat them...is to become one of them.

Once again, you are on board Shakhter-One. Traverse the deck of a well-known mining ship and the depths of Mark's twisted mind blended together. Run, fight, hide, explore – discover, what really happened to this place and do your best to destroy Shakhter-One.

Flee the shattered ruins of the Moscow Metro and embark on an epic, continent-spanning journey across the post-apocalyptic Russian wilderness. Explore vast, non-linear levels, lose yourself in an immersive, sandbox survival experience, and follow a thrilling story-line that spans an entire year in the greatest Metro adventure yet.

Half-Life: Alyx is Valve’s VR return to the Half-Life series. It’s the story of an impossible fight against a vicious alien race known as the Combine, set between the events of Half-Life and Half-Life 2. Playing as Alyx Vance, you are humanity’s only chance for survival.

Alan, who cannot remember his past, wakes up in a dark house caught between reality and illusion. Mirrors lie, rooms shift. In this psychological horror game, you must trace lost memories and face dark truths along with your mental collapse.

Journey through time and space to get for mankind 8 artifacts that hide powerful knowledge. A fascinating story, various levels, many weapons and enemies – the grandiose adventures await you in the game!