Top similar games like OSIRIS:
OSIRIS $3.99
Dark history about OSIRIS corporation, which performs experiments in the field of teleportation of human souls to the Heaven on the artificial planet G6. Inspired by Deep Dark Dubstep music.
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Ben and Ed$9.99
Ben and Ed is a 3D platformer, in which the player controls Ed the Zombie, who is forced to participate in a grotesque game show called "Rundead". Will he beat all obstacles Hans Showmaster confronts him with, to save his best friend Ben?
Zomborg$4.99
It is the year 2000, and the United Nations has established several quarantine zones around the world to stem the tide of an unknown virus pandemic. The United Nations called upon a private military company, highly skilled mercenaries to retrieve the data and uncover the secret of the zone.
Field of the Dead$8.99
Field of the Dead is a post-apocalyptic sci-fi horror game where you battle undead and mutants with space weapons. Level up, fight bosses, acquire rare gear, and explore infested areas to uncover the apocalypse's secrets. Supports single-player and up to four-player multiplayer.
Ariel$5.99
Intense survival experience based on a Sci-Fi, space terror script. Unravel the story of Ferdinand Ludec as he attempts to escape his fortune. Partially procedural world along with different endings to the story. Hunger, avoiding insanity and extreme weather will only be some of the threats to face.
BATTLE GEAR$10.99
A zombie virus that began with a meteorite, the surviving humans fled to the sea by boat. To get the world back, And for the victory of the human race, Solve the problems, As a troubleshooter for the UN ,That's your mission.
The Homestead Invasion$8.99
Shore up your home, take up arms, and hope the night ends with this terrible enemy returning from whence they came. Reclaim and defend your outpost against an onslaught of monstrous invaders using whatever you can to keep them at bay.
STARBO - The Story of Leo Cornell$5.99
STARBO tells you the story of a dead man's journey through a mysteriously blue world filled with strange messages and beings all trying to tell you a story, the story of Leo Cornell.
L.S.S II$2.99
L.S.S the fast paced wave shooter returns with all new game mechanics and enemy types to make the game even faster!
CRUEL$9.99
A fast run and gun horror shooter with roguelike elements
Starboost EX$6.99
Fly in space like Ironman with 30+ missions to play & deploy your own turrets & monsters into the battlefield. A story driven Sci-fi adventure game.
Dead Effect$4.99
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!
Mutant Gate$0.99
After years in cryoprison, Dr. Green awakens on a mutant-infested Earth colony. Seeking redemption and his estranged daughter Anna, he battles through a ravaged planet in a 4-hour campaign of intense combat, encounters, and adventure. Mutant Gate has hybrid tile/ASCII visuals & Steam Deck support.
THE LAST HUNT$19.99
November 2029, 4 years after the great war nearly all life forms on earth are dead. You are one of the last survivours. You have to fight your way thru the hordes of undead creatures. If you love old school arcade shooters like Commando, Dogs of War, Mercs... then this is the right game for you!
Spooky Shooter 3D$0.99
Spooky Shooter 3D - is a hardcore 3D shooter where you will survive in an old castle full of monsters.
Invention 3$0.99
In this game you have to fight your way through hordes of zombies in search of a safe place.
Life in the Twilight$3.49
Life in the Twilight - this is a world of hopelessness in which the guardians are looking for you to stop your escape.
OM6N$14.99
A Brutal, Action Horror FPS. Fight for your survival against a malevolent omen that has awoken. Will you stop this Evil... or fall victim like the rest?
Metal Dead$4.99
A hilariously terrifying adventure filled with laughs, blood, insanity, and of course... hordes of the undead.
SUPERHOT$24.99
SUPERHOT is the smash-hit FPS where time moves only when you move. No regenerating health bars. No conveniently placed ammo drops. It's you, alone, outnumbered and outgunned. Snatch weapons from fallen enemies to shoot, slice and dodge through a truly cinematic hurricane of slow-motion bullets.
2032: A New Threat$2.99
2032 is an Indie game with unique features. By 2032, 50% of global vegetation had already been completely consumed by a pest called P-X. A world war arises for basic resources for survival. Spider, a renowned soldier of the armed forces is summoned.
Herald of Havoc$18.99
Grab huge guns, mow down hundreds of enemies, reach the end of the level, repeat. It doesn't get any simpler than this. Embark on a 3 hour campaign with varied environments and situations, and beat the leaderboard on a tightly crafted survival mode.
Ghostship Chronicles$24.99
Prepare to board the Heckel and Thomas as a Black ops CDF detachment who were sent to investigate the disappearance of the long lost colonization ship. Keep your team teammates alive to evolve more stories and stand a chance of survival with 3 different endings.
Contagion VR: Outbreak$9.99
Contagion VR: Outbreak will immerse you into the middle of a zombie apocalypse. Relive stories of the survivors in the Single Player campaign, take your time in Free Roam, or check out the Firing Range!
The Future Project$9.99
Take control of an AI soldier, explore planets, and partake in fast paced combat in The Future Project, a first person metroidvania. Explore distinct worlds, obtain new weapons and abilities, and defeat powerful enemies in humanity's quest to journey the stars.
Palladium$9.99
A classical FPS based on movement filled with metroidvania elements and power ups to find by exploring the interconnected levels.
Black Mesa$19.99
Relive Half-Life.
Ion Fury$24.99
3D Realms, creators of Duke Nukem 3D, Prey, and Max Payne, are excited to team up with Voidpoint to bring back the legendary Build Engine, famously known for classic first-person shooters like Duke Nukem 3D, Shadow Warrior, and Blood. Ion Fury is the real deal!
Mist Survival$10.99
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
Fate of the World$9.99
Fate of the World is a dramatic global strategy game that puts all our futures in your hands. The game features a dramatic set of scenarios based on the latest science covering the next two centuries. You must manage a balancing act of protecting the Earth’s resources and climate versus the needs of an ever-growing world population, who...
The Day Of Survival$5.99
The Day Of Survival Immerse yourself in a post-apocalyptic world where every decision is crucial. "The Day Of Survival" is a thrilling survival game that challenges players to explore a harsh, unforgiving landscape filled with zombies and enemy soldiers.
Remnants of the Dawn$0.99
40 years in the future, after AI destroyed the world, a post-apocalyptic society lives hidden in the shadows knowing little of what came before. Venture down into a dark laboratory, fight your way past killer creatures, a maze of sinister traps, and evil AI to save the human race.
Big Byz Wars$12.99
Big Byz Wars is a sci-fi 2.5D side-scroller set in a mysterious future where flying cities provide refuge.As a mercenary, defend the largest flying city, Byzantium, facing fierce enemies.With cool graphics & immersive gameplay.The game takes you on an action-packed journey through a dangerous world.
Entropic Decay: PrologueFREE
This is the free prologue version of Entropic Decay, a fast paced, but slow burn horror/action FPS inspired by games from the late 90's through early 2000's. Enter volatile scenarios filled with danger, from both the living and the dead, where wits are as crucial as brawn...
The Indie Game Legend 3D$9.99
Blast vicious aliens, explore their mysterious labyrinth, and rescue indie game makers in this lighthearted NES inspired first-person action adventure!
Liberator TD$9.99
Liberator TD is a glorious mix of tower defense and top down shooter genres set in a sci-fi world. Tasked with the mission to establish a new colony on a distant planet, you find yourself in grave danger of the local wildlife.
Zombie Desperation$0.99
Zombie Desperation is a small horror game where you shoot hordes of zombies until you die, aiming to obtain a higher rank in the online leaderboards while unlocking new scenarios and weapons.
Nano Nebula$14.99
Nano Nebula is a space exploration game for VR. Thousands of years in the future, explore limitless planets as you discover alien life, solve ancient puzzles, and battle hostile creatures.
Remorse: The List$14.99
Remorse: The List is a classic survival horror game where the player must figure out what is happening in the little hungarian town of Hidegpuszta, and your only clue is a list that doesn't make much sense. Exploring will be the key to unveiling its secrets and get out of there alive.
PATHOGEN X$9.99
An immersive, first-person survival shooter where you step into the boots of Special Agent Aiden Clark. Dive deep into a hazardous underground laboratory, tasked with the perilous mission of neutralizing a biological menace and securing a pathogen sample.
Beyond Hanwell$24.99
Explore Westminster, London on a journey to the ruins of Hanwell. Fight with whatever you can find or use the environment to defend yourself against an ever increasing scourge of Anomalies.
HEARTS OF COLD - REDEMPTION$12.99
Hearts of Cold is a story driven, futuristic, open world, first person-third person Shooter, set in a wide range of varied environments with fast paced, intensive action interspersed with moments of calm and adventure.
Evil Beneath$1.99
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?
Outbreak: The New Nightmare$12.99
Return to the roots of co-op survival horror as you face monstrous hordes, scrounge for supplies and attempt to survive the nightmare. You have one life. Make it count!
BORIS the Mutant Bear with a Gun$2.99
Awesome shooter adventure about the Mutant Bear with a Gun!!!
Old Town StoriesFREE
Old Town, 1927. Ignithium technology has caused a huge leap leading to the dawn of war robots. In a city of smuggling and crime, Rose, an upper class girl, joins the Irish mafia to fight off Rusty Jack's robotic mafia, using advanced weapons in a frantic adventure to write her story in Old Town.
Dirty RoomFREE
First person shooter horror adventure game. As detective C, you arrived at an old friend's home and try to find out what's going on.
Axiom Verge$19.99
Explore and uncover the mystery of a surreal alien world by blasting aliens and glitching your environment in this intense retro side-scrolling action/adventure.
Fight or FlightFREE
Battle Royale and Extraction that blends PvP and PvE, You are a operative that will drop into the infected region and attempt to recover artifacts and eradicate the infected.Each player is pitted against Zombies, Monsters and each other. Online or Single player for practice with bots!
Cyborg City$2.18
Year 2225. Step into Cyborg City, a cyborg-apocalyptic world where Jax fights to survive from the Scrapyard up to Cyborg City. Using Bullet Time, Jetpack, and Upgrades to destroy enemies, he is avenging his family and saving the girl he loves in this third-person shooter.
Protocol$8.99
By signing below, you agree to follow the Protocol. Protocol is a program of strict rules created to make first contact with an alien life form that got shot down in the Arctic Circle.
NOT A HERO$19.99
Professional assassin turned amateur campaign manager Steve is charged with cleaning up the city by an anthropomorphic rabbit and mayoral candidate from the future named BunnyLord.