Games like Half-Life: Opposing Force

SPIDER INFERNO is a single player horror third person shooter game. You have to save the world from the professor and the spiders. In 8 missions + 2 bonus levels you have to prove your skills and win. Don't disappoint us. That's why we make you the savior of humanity!

Deadzone: Rogue is a roguelite FPS set in space. Blast through swarms of hostile machines, combine powerful augments and elements to forge your build, and grow stronger with each run — solo or in co-op.

Beyond Citadel is an anime style retro throwback shooter inspired by the classics of the 90's, with realistic gunplay mechanics, anime violence and fast paced combat. Fight your way through the heavily armed mechanical fortress and discover the secret that lies beneath.

S.T.A.L.K.E.R.: Shadow of Chornobyl, the first chapter of the Legends of the Zone Trilogy, which started it all.

Echo Point Nova is an open-world FPS that offers unparalleled freedom and thrilling speed. Designed for both singleplayer and coop. From the creators of Severed Steel.

An old-school shooter inspired by Wolfenstein 3D. You are one of the prisoners of an ancient prison. There is no one to help you. You only have yourself to rely on. Your shotgun. Against hordes of enemies. Animal rage and the desire to kill. Destroy Them All!

Selaco is a brand new original shooter inspired by classics, featuring thrilling action set pieces, destructibility, smart enemies and a fleshed out story taking place within an immersive game world.

Finish the hunt in this epic finale to the Turok Trilogy. Pick up immediately after the events of Turok 2: Seeds of Evil, with dual protagonists Joseph and Danielle Fireseed, of the Turok family tree, as they battle the titular antagonist Oblivion and its followers, the Flesh Eaters.

S.T.A.L.K.E.R.: Call of Prypiat follows the story of special service agent Major Degtyarev as he investigates the fate of a lost expedition.

Ripout is an online Co-Op horror FPS that will have players fight their way through procedurally generated derelict ships filled with mutants capable of reconfiguring their alien bodies. Survive with your trusty Pet Gun companion, collect loot, and customize your character to fit your playstyle.

Fight under the onslaught of mutated monsters, obsessed soldiers and even darker bosses. Just try to survive and find out what to do next in this life, simultaneously tearing your enemies to pieces.

La Quimera is a story-driven FPS set in dystopian future Latin America. In a fractured world where microstates rely on mercenary forces, you are an operative caught in a web of lies and deception. Play alone or with up to two friends geared with futuristic weapons, exoskeletons and combat abilities.

Starship Troopers: Extermination is an up to 16-player co-op FPS that puts you on the far-off frontlines of an all-out battle against the Bugs! Squad up, grab your rifle, and do your part as an elite Deep Space Vanguard Trooper to take back planets from the Arachnid threat!

A sci-fi first-person shooter where you battle ruthless alien forces in an underground war. Utilize advanced weaponry, master Zendle energy abilities, and navigate treacherous environments. Engage in intense combat, uncover hidden secrets, and fight for survival in a world on the brink of collapse.

In Hollow Space, you are transported to an abandoned space station drifting on the edge of the galaxy. A rescue crew responds to a mysterious SOS signal, only to find that something terrifying lurks in the shadows. Will you dare to face the danger, or will you become the monster yourself?

Zero Hour is a tactical FPS with online team-based game play that takes place in a variety of fictional locations interpreted in Bangladesh with Real-life scale & resource management. It brings a grounded, close quarter combat experience to the game.

Battle for survival against endless alien hordes with your friends! The Anacrusis is a first-person shooter that dynamically adjusts difficulty to you. Experience intense 1-4 player co-op action or play as the aliens and stop your friends in 1-8 player Versus mode. Full Steam Workshop support!

Tactical extraction shooter meets immersive survival horror. Play as rival mercenaries fighting for loot, or as alien monsters hunting humans from the shadows. Solo or with friends, experience this unique dark take on asymmetrical PvPvE multiplayer.

S.T.A.L.K.E.R.: Clear Sky is the prequel chapter of the Legends of the Zone Trilogy. With the ability to directly influence the balance of power through Faction Wars, step into the boots of Scar — a seasoned mercenary, able to somehow survive deadly Emissions.

Call of Duty®: Black Ops 6 is signature Black Ops across a cinematic single-player Campaign, a best-in-class Multiplayer experience and with the epic return of Round-Based Zombies.

Prepare yourself for the long awaited sequel. You will 360. You will noscope. You will see some weird af s*** on your quest to destroy the Illuminati and rescue the memes. Are you ready for 420BLAZEIT 2????!!1

Blast, slice and shred through your enemies in this hardcore FPS inspired by the icons of the '90s, powered by the legendary Quake-1 Tech. Taking place in a realm left to rot, take up arms, unearth long-forgotten secrets and hunt down the Guardians of the Old World.

You arrive at Mars Site-113, a decaying monument to the SCP Foundation's ambition—and its failures. Once the most secure facility, now a cradle of horrors calling you to uncover its secrets. Face relentless anomalies, humanity's darkest truths, and a mission that demands survival above all else.

Contain is a Tactical Co-Op FPS game. Form your squad of four players to fight against the anomalies. Try to "Contain" them where the line between ordinary and extraordinary is blurred.

You awaken in a bunker, at the bottom of an unknown pit, where each floor brings waves of alien enemies and a single purpose: to test you. Who are you? Why are you here? Move forward, survive, and uncover the secrets buried deep within.

E.E.R.I.E 2 is a tactical shooting game. In the modern Gensokyo, play the role of fairy Luna, and uses a variety of modern light weapons and tactical equipment to join in a war that decides the fate of Gensokyo.

Casual & Hard FPS. Be careful with jam.

Scour through the fallen foundry, obscuring enemies and creatures whilst plundering to your death, get ripped apart or circumvent through harsh environments and traps. Let the gun do the talking, so sit back, relax and blow everything to pieces.

Shelly “Bombshell” Harrison is back in this highly interactive mix of first person action and road movie adventure. Embark on an adrenaline-fueled journey around the USA. Use an enormous arsenal of weapons and skills to battle treacherous soldiers and vile mutants, all while trying to save mankind.

Get ready for the apocalypse! Shatterline is a high-octane single-player FPS adventure where Earth’s survival hangs in the balance. Pick a unique operator and combat the alien plague!

Download VAIL and experience the #1, highest-rated VR shooter, with precision-crafted gunplay, stunning visuals, unparalleled combat, and a constantly expanding world of modes, maps, and community

First-person Ability Shooter with fast-paced action, bosses, and multiple levels. A meteorite crashes, leaving a powerful resource that others are willing to do anything to obtain, alongside a dangerous creature that arrived with the meteorite. It's up to you to stop them and save the world.

Overwhelmingly bizarre beauty. Shoot, dodge, and destroy! A shmup where an apocalyptic world awakens to primal desires!

SENTRY is an action-defense first person shooter where you defend your spaceship against invading aliens. Plot an escape route through hostile space and battle the enemy across your vessel with the support of traps, turrets and environmental destruction.

KILLMAGE is a fast-paced arena shooter with the hordes of the Immortal closing in on you. The Sound rings into the night, don't stop, kill them all.

You wake up as an army soldier in the middle of a mutant apocalypse, trying to figure out what the hell happened and blasting some heads on the way. Deadshot is a retro styled first person shooter inspired from classics like Half Life, Doom, Quake and many alike.

Venture forth as part of a specialized team of fellow players tasked with retrieving classified materials, evading the black goo virus, and the nightmarish entities it has spawned. With time running out before the US government initiates a devastating nuclear strike to contain the spreading menace.

Blindfire delivers unique FPS action in pitch-black arenas. Rely on sound and high-tech gadgets to develop your skills in new ways. Ideal for quick, high-tension matches with friends.

Alien: Rogue Incursion is an all-new action-horror VR game that transforms you into ex-Colonial Marine Zula Hendricks on a dangerous mission to the uncharted planet Purdan, featuring innovative real-life motion gameplay, a whole-body loadout, and the most cunning Xenomorphs ever encountered.

Metro Awakening is a story-driven first person adventure built for VR that blends atmospheric exploration, stealth and combat in the most immersive Metro experience yet. Don your gas mask, brave the crippling radiation and venture into the depths of the Metro where threats haunt your every step.

Primarily solo-developed tactical WWII FPS with sabotage, destructible environments, tanks and vehicles, inspired by real events. Experience the opening chapters of Eduard Pěnkava's story and take part in dangerous operations behind enemy lines.

Explore the breathtaking alien world of Adelpha, support the local Talans in their struggles and fight your way through fast-paced battles against invading robot forces in this 3rd-person, open world, action adventure sequel to the 1999 cult classic.

Explore a decaying industrial world left behind in humanity's never-ending race to conquer the stars. Beneath its iron skies, desperate souls kill and steal for passage to the still-plentiful frontier worlds. Sink or swim in this high-octane first-person shooter with immersive sim elements.

Into the Radius 2 is an immersive VR survival shooter, set in a realm of surreal landscapes and deadly entities known as Pechorsk Anomaly. Arm yourself with realistic weapons and venture deeper into the mysteries within. Featuring co‑op for up to four players.

Outlive the apocalypse! Dive into intense Encounters and extract the most valuable spoils the Outlands have to offer! Loot, shoot, and build to become the absolute Outlander and explore the landscape of a post-war Norway in Vigor, a free-to-play looter shooter.

Kill Invaders - Dive into a thrilling multiplayer FPS with an alien storyline. Defend Earth in a battle against extraterrestrial invaders! Single Player, Multiplayer, Deathmatch and Battle Royale Modes !

The Galaxy’s Last Line of Offence. Enlist in the Helldivers and join the fight for freedom across a hostile galaxy in a fast, frantic, and ferocious third-person shooter.

Operation Guest is an action-adventure game set in Russia in the late 1990s. Explore an open world, complete tasks from local residents, battle enemies, find secrets and uncover a terrifying conspiracy as you embark on an exciting journey.

Join dangerous raids for loot or intense PvP battles in this new realistic military shooter set in a fractured multiverse. Fight in the quantum unstable zones over control of the active matter – the substance that bends time and space.

Abiotic Factor is a survival crafting experience for 1-6 players set in the depths of an underground research facility. Caught between paranormal containment failure, a military crusade, and chaos from a dozen realms, the world’s greatest minds must survive against the universe’s biggest threats.

The Moon's haunted - and when an astronaut loses contact with Earth, the adventure begins in full. Fill up your oxygen, load up the guns, and set out on an interstellar FPS adventure across the stars, filled with puzzles, fights, exploration, and strange secrets of the universe.

A Single and cooperative game for 4 players, you are a fighter of a special purpose unit, your task is to destroy waves of zombies by taking convenient positions and using tactic

Welcome to Volume I of a high adrenaline, fast-paced Boomer Shooter where you have only one goal: spread furious mayhem among the scumbags keeping you locked up. Stuck looking for an exit? Just punch through walls and then shoot the suckers behind them.

Mind controlled cows are headed straight for you. Scavenge, barricade, and defend as long as you can. How long will you survive the dairy onslaught?