Garry's Mod is a physics sandbox. There aren't any predefined aims or goals. We give you the tools and leave you to play.

Set in the zombie apocalypse, Left 4 Dead 2 (L4D2) is the highly anticipated sequel to the award-winning Left 4 Dead, the #1 co-op game of 2008. This co-operative action horror FPS takes you and your friends through the cities, swamps and cemeteries of the Deep South, from Savannah to New Orleans across five expansive campaigns.

The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!

Defy the god of the dead as you hack and slash out of the Underworld in this rogue-like dungeon crawler from the creators of Bastion, Transistor, and Pyre.

Experience true combat gameplay in a massive military sandbox. Deploying a wide variety of single- and multiplayer content, over 20 vehicles and 40 weapons, and limitless opportunities for content creation, this is the PC’s premier military game. Authentic, diverse, open - Arma 3 sends you to war.

Call of Duty®: Modern Warfare® II drops players into an unprecedented global conflict that features the return of the iconic Operators of Task Force 141.

Deep Rock Galactic is a 1-4 player co-op FPS featuring badass space Dwarves, 100% destructible environments, procedurally-generated caves, and endless hordes of alien monsters.

The critically acclaimed RPG that raised the bar, from the creators of Baldur's Gate 3. Gather your party. Master deep, tactical combat. Venture as a party of up to four - but know that only one of you will have the chance to become a God.

1998. HALF-LIFE sends a shock through the game industry with its combination of pounding action and continuous, immersive storytelling. Valve's debut title wins more than 50 game-of-the-year awards on its way to being named "Best PC Game Ever" by PC Gamer, and launches a franchise with more than eight million retail units sold worldwide.

Welcome to Hope County, Montana, home to a fanatical doomsday cult known as Eden’s Gate. Stand up to cult leader Joseph Seed & his siblings, the Heralds, to spark the fires of resistance & liberate the besieged community.

Join over 20 million players in the award-winning online multiplayer RPG and experience limitless adventure in a persistent Elder Scrolls world. Battle, craft, steal, or explore, and combine different types of equipment and abilities to create your own style of play. No game subscription required.

Portal™ is a new single player game from Valve. Set in the mysterious Aperture Science Laboratories, Portal has been called one of the most innovative new games on the horizon and will offer gamers hours of unique gameplay.

Relive Half-Life.

Age of Empires II has been re-imagined in high definition with new features, trading cards, improved AI, workshop support, multiplayer, Steamworks integration and more!

ASSASSIN’S CREED® ORIGINS IS A NEW BEGINNING *The Discovery Tour by Assassin’s Creed®: Ancient Egypt is available now as a free update!* Ancient Egypt, a land of majesty and intrigue, is disappearing in a ruthless fight for power.

Dive into a freezing underwater adventure on an alien planet. Below Zero is set two years after the original Subnautica. Return to Planet 4546B to uncover the truth behind a deadly cover-up. Survive by building habitats, crafting tools, & diving deeper into the world of Subnautica.

Hell is an experiment you can't survive in Outlast, a first-person survival horror game developed by veterans of some of the biggest game franchises in history. As investigative journalist Miles Upshur, explore Mount Massive Asylum and try to survive long enough to discover its terrible secret... if you dare.

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.

Ushering in a new era for the METAL GEAR franchise with cutting-edge technology powered by the Fox Engine, METAL GEAR SOLID V: The Phantom Pain, will provide players a first-rate gaming experience as they are offered tactical freedom to carry out open-world missions.

Take back the city of Tertium from hordes of bloodthirsty foes in this intense and brutal action shooter. Warhammer 40,000: Darktide is the new co-op focused experience from the award-winning team behind the Vermintide series. As Tertium falls, Rejects Will Rise.

(Release: 2014) Special agent Leon S. Kennedy is sent on a mission to rescue the U.S. President’s daughter who has been kidnapped.

The Stanley Parable is a first person exploration game. You will play as Stanley, and you will not play as Stanley. You will follow a story, you will not follow a story. You will have a choice, you will have no choice. The game will end, the game will never end.

From Valve (the creators of Counter-Strike, Half-Life and more) comes Left 4 Dead, a co-op action horror game for the PC and Xbox 360 that casts up to four players in an epic struggle for survival against swarming zombie hordes and terrifying mutant monsters.

A Hat in Time is a cute-as-heck 3D platformer featuring a little girl who stitches hats for wicked powers! Freely explore giant worlds and recover Time Pieces to travel to new heights!

The dead have risen and civilization has fallen. Now it's up to you to gather survivors, scavenge for resources and build a community in a post-apocalyptic world – a world where you define what it means to survive in this ultimate zombie survival simulation.

Half-Life® 2: Episode Two is the second in a trilogy of new games created by Valve that extends the award-winning and best-selling Half-Life® adventure. As Dr. Gordon Freeman, you were last seen exiting City 17 with Alyx Vance as the Citadel erupted amidst a storm of unknown proportions.

Bloodstained: Ritual of the Night is an exploration-focused, side-scroller action RPG by Koji Igarashi. Play as Miriam, an orphan scarred by an alchemist's curse that slowly crystallizes her body. Battle through a demon-infested castle and defeat its master to save yourself, and all of humanity!

Play as a shark or a diver in a dark aquatic world and overcome your enemies by employing cunning, teamwork, and stealth. Depth blends tension and visceral action as you team up against AI or be matched with other players in heart pounding combat.

Stoneshard is a challenging turn-based RPG set in an open world. Experience the unforgiving life of a medieval mercenary: travel across the war-torn kingdom, fulfill contracts, fight, mend your wounds and develop your character without any restrictions.

You play Adam Jensen, an ex-SWAT specialist who's been handpicked to oversee the defensive needs of one of America's most experimental biotechnology firms. Your job is to safeguard company secrets, but when a black ops team breaks in and kills the very scientists you were hired to protect, everything you thought you knew about your job...

Crypt of the NecroDancer is an award winning hardcore roguelike rhythm game. Move to the music and deliver beatdowns to the beat! Groove to the epic Danny Baranowsky soundtrack, or select songs from your own MP3 collection!

Clone Drone in the Danger Zone is a robot voxel slice-em-up where any part of your body can be sliced off. With your mind downloaded into a robot gladiator, you must survive the sinister trials of the arena.

Half-Life 2 has sold over 4 million copies worldwide, and earned over 35 Game of the Year Awards. Episode One is the first in a series of games that reveal the aftermath of Half-Life 2 and launch a journey beyond City 17. Also features two multiplayer games. Half-Life 2 not required.

Gather your party and get ready for the kick-ass new version of GameSpot's PC Game of the Year 2014. With hours of new content, new game modes, full voiceovers, split-screen multiplayer, and thousands of improvements, there's never been a better time to explore the epic world of Rivellon!

Nine distinct classes provide a broad range of tactical abilities and personalities. Constantly updated with new game modes, maps, equipment and, most importantly, hats!

Amnesia: The Dark Descent, a first person survival horror. A game about immersion, discovery and living through a nightmare. An experience that will chill you to the core.

Three years after the conflict in Chernarus, portrayed in the original Arma 2, a new flashpoint explodes in the Green Sea Region. Coalition forces led by the US Army are deployed to Takistan to quickly restore peace and prevent further civilian casualties.

Developed by Shinji Mikami -- creator of the seminal Resident Evil series -- and the talented team at Tango Gameworks, The Evil Within embodies the meaning of pure survival horror. Highly-crafted environments, horrifying anxiety, and an intricate story are combined to create an immersive world that will bring you to the height of tension.

The Beginner's Guide is a narrative video game from Davey Wreden, the creator of The Stanley Parable. It lasts about an hour and a half and has no traditional mechanics, no goals or objectives. Instead, it tells the story of a person struggling to deal with something they do not understand.

Welcome to the zombie apocalypse experience of a lifetime – and now more beautiful than ever. Caught in the midst of an epic zombie outbreak on the tropical island of Banoi, your only thought is: Survive!

Shadow Warrior is a bold reimagining of the classic 3D Realms’ shooter from independent developer Flying Wild Hog (Hard Reset) starring the legendary and quick-witted warrior Lo Wang.

Hacknet is an immersive, terminal-based hacking simulator for PC. Dive down a rabbit hoIe as you follow the instructions of a recently deceased hacker, whose death may not have been the accident the media reports.

RAGE 2 brings together two studio powerhouses – Avalanche Studios, masters of open world insanity, and id Software, creators of the first-person shooter – to deliver a carnival of carnage where you can go anywhere, shoot anything, and explode everything.

Vermintide is an epic co-operative action combat adventure set in the End Times of the iconic Warhammer Fantasy world.

June 7th, 1995. 1:15 AM. You arrive home after a year abroad. You expect your family to greet you, but the house is empty. Something's not right. Where is everyone? And what's happened here? Unravel the mystery for yourself in Gone Home, a story exploration game from The Fullbright Company.

Live through an epic role-playing Viking saga where your strategic choices directly affect your personal journey. Make allies as you travel with your caravan across this stunning yet harsh landscape. Carefully choose those who will help fight a new threat that jeopardizes an entire civilization.

Forts is a physics-based RTS where foes design and build custom bases, arm them to the teeth and blast their opponent's creations to rubble.

House Party is an edgy comedy adventure game inspired by classic comedies of the '90s. Every decision changes your story and every character has something to reveal. There’s also a button to take your pants off.

You wake up, alone, on a strange island full of puzzles that will challenge and surprise you.

The classic adventure returns! Baldur’s Gate: Enhanced Edition includes the original Baldur’s Gate adventure, the Tales of the Sword Coast expansion, and all-new content including three new party members.