Top similar games like OSIRIS:

Welcome to Masked Forces 3, the ultimate FPS simulation! This is a game where you can test and improve your shooting capabilities against multiple game modes.

Survive the terrifying events on Angstrom Station.

The space station suffered an unknown infection from space, the previously unknown X virus mutates, almost the entire crew of the station is infected, you need to stop the army of mutants until they break through to Earth and the judgment day begins!

As zombie crisis broke out around the world,you will play one of the warrior of S.E.A.T(Special Event Action Team)to fight against the zombies all over the world.ZomDay is a fast pace VR shooting game contains multi-player mod,exciting Boss fight,character perk and hardcore weapon system.

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.

Serious Sam 4 reignites the classic FPS series in a high-powered prequel loaded with an explosive arsenal, intergalactic carnage, and perfectly timed one-liners.

Dead Purge: Outbreak is a modern first-person shooter set in an unforgiving post-apocalyptic world where every minute can be your last.

Juicy top down intense old school shooter!

This game is only for those who willing to take challenge or hurt themselves.

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.

Dreadfire is a thrilling ultraviolent FPS game. Shred your enemies with a large destructive arsenal. Destroy them until none remain. They won't stop until you're dead.

Fast paced mayhem in a hellish nightmare. Feel the dread of fear lingering nearby and the exhilaration of being chased by demons and undead in this bloody violent horror first person shooter. A detailed Unreal Engine 5 game utilizing advanced Nanite and Niagara graphics.

Gorytale is a fast-paced, adrenaline-rushed FPS shooter set in a candy land, that is so damn sweet it could be called someone’s Hell

Hotline Miami 2: Wrong Number is the brutal conclusion to the Hotline Miami saga, set against a backdrop of escalating violence and retribution over spilled blood in the original game.

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

Survive the onslaught in "Bloody Downsizing," a rogue-lite arena shooter set in a cutthroat corporate world. Play as John Varga, a financial analyst, thrust into a chaotic battle for survival. Customize your profile, power up, and harness the epic slow-motion feature to deliver jaw-dropping kills.

In 2527 in a dystopian world, Jake, an engineer and bounty hunter, travels to the far reaches of the universe through a wormhole. With the help of his friend Roy, Jake's goal is to exterminate the replicator robots that threaten the Confederate planets.

Donuts 'N' Justice is a fast-paced 2d horizontal shoot-'em-up wherein you take the role of one of two Super Cops in the 1980s to defend their city against gangs, violence and corruption.

Face against waves of 200 zombies with nowhere to run or hide.

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.

Possessed is a fast-paced story driven survival first person shooter spread across 3 action-packed regions. It features witty characters, terrifying creatures and a strong focus on physics and world interaction.

A hilariously terrifying adventure filled with laughs, blood, insanity, and of course... hordes of the undead.

Join BRUTAL JOHN and DOGE in a violent retro FPS adventure as you confront the greedy crypto-miners and their allies. Blast your way through hordes of enemies and stop the crypto-mining menace for good. Prepare for an adrenaline ride that pays homage to the best shooters of the '90s.

Cosmic pilot has lost his ship on the remote asteroid populated by disaster human colony. Hungry zombies, villainous mercenaries and monsters are everywhere. Only you ... and his awesome arsenal could lead hero to freedom.

Save Ukraine from swamp hordes of savages in this First Person Horde-Shooter!

ION Shift delivers fast-paced, precision combat and sleek visuals, crafted for fans of Katana Zero. Experience intense, one-hit kills, strategic gameplay. A must-play for those who crave stylish action and high-stakes battles.

Awesome shooter adventure about the Mutant Bear with a Gun!!!

DOOMED is a First Person Shooter with horror elements, heavily inspired by old-school shooter classics.

My Friend Pedro is a violent ballet about friendship, imagination, and one man’s struggle to obliterate anyone in his path at the behest of a sentient banana.

Classic First Person Shooter style game. Like the good old days. An action game focused on speed, gore, guns, and metal music. Inspired by the 90s’ classics with modern visuals and audio!

Task is to Survive - Is a first person shooter. You play as a soldier and you were sent by helicopter to the infected object in which there are a huge number of dangerous zombies. Do you have a special mission - to kill as many zombies before the time, until you die!

MAXIMUM Action is a brutal and satisfying physics-based first person shooter influenced by Hong Kong cinema, heroic slow motion bloodshed, and old-school FPS ACTION.

VERSEBREAK is a fast-paced elemental FPS where you are a Crusader. Use the powers of four elements to fight your way through a bloody crusade against a demonic cult that controls the whole world.

Breach enemy stronghold in dread Siberian wastelands before insurgents can open gates to Samozbor dimension.

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!

A dark co-op top-down shooter in a post-soviet zombie apocalypse setting. You appear at a random location in the city. The goal is to get to the transport, and you will make the path yourself. In the day - look for resources and build fortifications. At night - destroy the dead and their bosses!