Games like Half-Life 2

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.

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.

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

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.

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.

Shelf Life is an action FPS set in a near future conglomerate, that will seem eerily familiar if you spend your time around online dumpster fires. Use your arsenal of weapons to shoot, burn and fungible-ize your way through the Edison facility fighting a lizardy hostile takeover.

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.

Action, mystery, and a chance for redemption await you in the gritty first-person action-adventure GRAVEN. Explore a dark fantasy world as a wrongly convicted man of faith. Battle the horrors of humanity, the wilds, and beyond using armaments, magic, and the environment.

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.

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?

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.

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.

Casual & Hard FPS. Be careful with jam.

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.

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!

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.

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.

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.

Sid Meier's Alpha Centauri™ Planetary Pack includes the original Alpha Centauri and the expansion, Alien Crossfire.

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.

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!

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!

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.

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.

A space shooter in which you must defeat alien robots.

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.

State of Matter is a First-Person Puzzle Action Shooter utilizing a new element and its three states of matter to traverse through a derelict mining outpost in the Kuiper Belt. Armed with an experimental mining tool, you must solve puzzles and defeat enemies as you travel deeper into the facility.

No More Room in Hell 2 is an intense 8 player zombie shooter. Overcome the endless undead. Avoid infection. Survive hell together.

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.

Winston thought he could use heavy machinery and power from the depths of hell to transform sinful men into magic ponies. Winston was wrong.

A nuclear disaster has left an area of Britain in tatters. Atomfall, a new survival-action game, will see you explore, scavenge, craft, barter and fight your way through beautifully recreated scenery in search of answers.

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.

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.

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!

Choose your pilot and build your own custom mecha with 17+ weapons and 55+ attachments, then jump to the battlefield against hundreds of enemies to save spacetime itself in this thrilling sci-fi bullet heaven!

Step into a world over run with Mycha, a strange mineral with seemingly magical powers. Clear monster-infested environments and protect researchers on your own or with up to three other players online. Welcome to The Federation.

Contractors Showdown delivers intense VR extraction combat in ExfilZone, now featuring PvE Mode alongside high-stakes PvPvE action. Customize your loadout, complete missions, loot, survive, and fight your way through immersive tactical battles.

BEACHHEAD - IT'S NOT JUST A GAME, IT'S THE FUTURE OF REALITY. BeachHead 2000 changed the gaming paradigm by bringing a new gaming experience to life. 20 + years later, the original creators are doing it again. Try the new BEACHHEAD experience (VR or Desktop) and see for yourself.

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 !

After a deadly virus left humanity paralyzed, survivors now battle on wheels! Customize your rig, sharpen your aim, and roll into fast-paced wheelchair warfare across multiple maps and modes. Join the fight!

A terrifying, brutal horror VR shooter adventure with quests, zombies, mutants, and guns! At the onset of the apocalypse, you find yourself inside an old bunker. You must fight your way with full force through the ranks of the undead army of the Dark Invasion to find a way out of that forsaken place

Slaughter hordes of zombies and challenging bosses in Bodyrain: a zombie FPS game! Accumulate money to acquire new weapons and gain experience to strengthen your character and clean up Dawn City!

Now with over 600,000 copies sold, ZERO Sievert is a tense top-down extraction shooter that challenges you to scavenge a procedurally-generated wasteland, loot gear, and explore what’s left of a devastated world. When the odds are stacked against you, you’ll need to do more than just survive...

Join BRUTAL JOHN and BRUTAL DOG in a ultraviolent old-school FPS set in a world overrun by crypto-mining technologies, where it’s up to you to destroy them and reclaim control. Prepare for an adrenaline ride that pays homage to the best shooters of the '90s.

Get into your Flying Tank and shoot 'em up like it's the good old days! Kill strange bosses, drop bombs from above and build an arsenal of fun, powerful weapons. Reclaim the stolen Earth - alone or with a friend - in a rich action-packed side-scrolling shmup!

The Forever Winter is a tactical shooter where you and your squad must loot the dead to survive beneath gargantuan war machines in a dystopian future of AI automata, cybernetically enhanced soldiers, and endless conflict. Millions of deaths later, the war continues with our latest update!

BlockStar VR is a VR shooter where you put your reflexes to the test by shooting blocks and completing challenges in an action-packed futuristic tournament. Play the 40-mission story mode and show that you have what it takes to flex on the leaderboard!

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.

APP HAS BEEN RETIRED!

After centuries of invincibility, it became popular for humans to watch live alien hunting shows, participate in alien hunts, save up money, equipment, and use all the loot you find to move on to new maps and defeat more powerful enemies.

You have only 5 minutes to stylishly explode your way through the hordes of corrupted entities in a retro FPS, roguelike liminal-nightmare... and Timmee is here to help!

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.

Day of Invasion: Reloaded is a First Person Zombie-Shooter that takes place within the Horton-Genetics Disaster of Milespring. Find Weapons to fight your way through hordes of Infected!