Popular games published by company Valve
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. Alyx Vance and her father Eli mount an early resistance to the Combine's brutal occupation of Earth.
Sequel to the acclaimed Portal (2007), Portal 2 pits the protagonist of the original game, Chell, and her new robot friend, Wheatley, against more puzzles conceived by GLaDOS, an A.I. with the sole purpose of testing the Portal Gun's mechanics and taking revenge on Chell for the events of Portal. As a result of several interactions and revelations, Chell once again pushes to escape Aperture Science Labs.
1998. HALF-LIFE sends a shock through the game industry with its combination of pounding action and continuous, immersive storytelling. NOW. By taking the suspense, challenge and visceral charge of the original, and adding startling new realism and responsiveness, Half-Life 2 opens the door to a world where the player's presence affects everything around them, from the physical environment to the behaviors even the emotions of both friends and enemies.
The Orange Box is a bundle that includes five titles from Valve: Half-Life 2; Half-Life 2:Episode 1; Half-Life 2: Episode Two; Team Fortress 2, the sequel to the game that put class-based, multiplayer team warfare on the map; and Portal, the game that blends puzzles, first person action, and adventure gaming to produce an experience like no other.
Half-Life is a 1998 first-person shooter (FPS) game developed by Valve Corporation and published by Sierra Studios for Windows. It was Valve's debut product and the first game in the Half-Life series. The player assumes the role of Gordon Freeman, a theoretical physicist who must escape from the Black Mesa Research Facility after it is overrun by aliens following a disastrous scientific experiment. Its gameplay consists of diverse combat, exploration and puzzles.
Half-Life 2: Episode Two is a first-person shooter set in the aftermath of the Citadel's destruction. Players control Gordon Freeman as he and Alyx Vance travel through forests and underground tunnels toward a resistance base, facing Combine forces and new enemy types along the way. The game emphasizes vehicle-based combat sequences alongside the series' physics-driven puzzles and gunplay.
Waking up in a seemingly empty laboratory, the player is made to complete various physics-based puzzle challenges through numerous test chambers in order to test out the new Aperture Science Handheld Portal Device, without an explanation as to how, why or by whom.
Portal: Still Alive is a retooled version of the original smash hit first-person puzzle game, with additional levels and challenges. As unwilling test subjects in a sinister laboratory, players must break the laws of physics using 'portal' technology to solve puzzles and survive. Featuring a darkly comic story that weaves adventure with brain-bending puzzles; 'Portal: Still Alive' also introduces 14 brand new bonus puzzles to challenge even the most skilled test subjects. Players can also get a glimpse into the making of 'Portal: Still Alive' with commentary from the developers.
Half-Life 2: Episode One is the first of a planned trilogy of expansion packs/episodes for the 2004 first-person shooter game, Half-Life 2. The episode takes place immediately after the end of Half-Life 2, in the war-torn setting of City 17. The player is forced to deal with the effects of their actions during the main game. The episode is a stand-alone game; while a continuation of Half-Life 2, it does not require the original game to be installed or registered to a user's Steam account to play. It takes advantage of several major upgrades to the Source engine since the release of Half-Life 2, primarily its high dynamic range rendering capabilities and the upgraded facial animation system. Episode One was released together with Half-Life Deathmatch: Source, a port of the original Half-Life's multiplayer, which doubles as Episode One's multiplayer component. The retail copies of Episode One also come with Half-Life 2 Deathmatch for those who have not previously purchased the later title.
Counter-Strike is a team-based multiplayer tactical first-person shooter in which players join either the Terrorist or Counter-Terrorist side and compete in objective-based rounds. The primary game modes involve bomb defusal and hostage rescue, played across designated maps. Players purchase weapons and equipment between rounds using money earned from eliminations and completed objectives, and eliminated players must wait until the next round to respawn. Originally a fan-made modification for Half-Life created by Minh Le and Jess Cliffe in 1999, it was acquired by Valve and released as a standalone retail product in 2000, becoming one of the most influential first-person shooters and spawning multiple sequels including Counter-Strike: Source, Global Offensive, and Counter-Strike 2.
One of the most popular online action games of all time, Team Fortress 2 delivers constant free updates—new game modes, maps, equipment and, most importantly, hats. Nine distinct classes provide a broad range of tactical abilities and personalities, and lend themselves to a variety of player skills.
Left 4 Dead 2 is a cooperative first-person shooter video game, the sequel to Valve Corporation's Left 4 Dead. The Game builds upon cooperatively focused gameplay and Valve's proprietary Source engine, the same game engine used in the original Left 4 Dead. Set during the aftermath of an apocalyptic pandemic, Left 4 Dead 2 focuses on four new Survivors, fighting against hordes of the Infected, who develop severe psychosis and exhibit zombie-like tendencies. The Survivors must fight their way through five campaigns, interspersed with safe houses that act as checkpoints, with the goal of escape at each campaign's finale.
Counter-Strike: Global Offensive is a team-based multiplayer first-person shooter developed by Valve and Hidden Path Entertainment. Two teams, Terrorists and Counter-Terrorists, compete in objective-based rounds across various game modes including bomb defusal, hostage rescue, and deathmatch. The game features an economy system where players purchase weapons and equipment at the start of each round based on performance in previous rounds. Competitive matchmaking, community servers, and a robust skin trading ecosystem support a large active player base.
Left 4 Dead is a cooperative first-person shooter set during a zombie outbreak on the East Coast of the United States. Four players control survivors who must fight through hordes of infected humans, creatures transformed by a rabies-like pathogen that causes extreme aggression and loss of higher brain function. Gameplay emphasizes teamwork, with colored outlines showing teammate positions through walls, shared healing items, and friendly fire creating consequences for careless shooting. An AI system called the Director dynamically adjusts enemy placement, item spawns, and pacing based on player performance. Beyond common infected, players face five special mutated types with unique abilities. Campaigns are divided into levels connected by safe houses, each culminating in a desperate last stand for rescue.
Welcome to The Lab, a compilation of Valve's room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more.
Opposing Force returns to the same setting as Half-Life, but instead portrays the events from the perspective of a U.S. Marine, one of the enemy characters in the original game. The player character, Adrian Shephard, is sent in to neutralize the Black Mesa Research Facility after a scientific mishap causes it to be invaded by aliens, but quickly finds that the Marines are outnumbered and slowly being beaten back by a second alien race and black operations units.
Dota 2 is a multiplayer online battle arena video game and the stand-alone sequel to the Defense of the Ancients (DotA) mod. With regular updates that ensure a constant evolution of gameplay, features, and heroes, Dota 2 has taken on a life of its own.
Garry's Mod is a physics-based sandbox game built on Valve's Source engine. In its base mode, there are no objectives. Players can spawn non-player characters, ragdolls, and props, then manipulate them using a physics gun that can pick up, rotate, and freeze objects in place. A tool gun provides additional functionality such as welding objects together or adjusting facial expressions on ragdolls. The game supports extensive Lua-based modding, and community-created game modes like Trouble in Terrorist Town and Prop Hunt have become widely popular in their own right. Originally released as a free mod for Half-Life 2 in 2004, it became a standalone commercial release in 2006 and holds the record as the best-selling PC-exclusive game.
Counter-Strike: Source blends Counter-Strike's award-winning teamplay action with the advanced technology of Source technology. Featuring state of the art graphics, all new sounds, and introducing physics, Counter-Strike: Source is a must-have for every action gamer.
Aperture Desk Job reimagines the been-there-done-that genre of walking simulators and puts them in the lightning-spanked, endorphin-gorged world of sitting still behind things. You play as an entry-level nobody on their first day at work — your heart full of hope and your legs full of dreams, eager to climb that corporate ladder. But life’s got other plans, and they all involve chairs. Designed as a free playable short for Valve’s new Steam Deck, Desk Job walks you through the handheld’s controls and features, while not being nearly as boring as that sounds. Lower your expectations: This is not a sequel to Portal. Now get ready to raise them slightly, because it is in the expanded universe of those games. Desk Job puts you squarely in the driver’s seat at Aperture Science. Then quickly removes the driving part and adds a desk in front of the seat.
Fast multiplayer action set in the Half-Life 2 universe! HL2's physics adds a new dimension to deathmatch play. Play straight deathmatch or try Combine vs. Resistance teamplay. Toss a toilet at your friend today!
Enlist in an intense brand of Axis vs. Allied teamplay set in the WWII European Theatre of Operations. Players assume the role of light/assault/heavy infantry, sniper or machine-gunner class, each with a unique arsenal of historical weaponry at their disposal. Missions are based on key historical operations. And, as war rages, players must work together with their squad to accomplish a variety of mission-specific objectives.
With its extensive Tour of Duty campaign, a near-limitless number of skirmish modes, updates and new content for Counter-Strike's award-winning multiplayer game play, plus over 12 bonus single player missions, Counter-Strike: Condition Zero is a tremendous offering of single and multiplayer content.
"The Last Stand" is a "campaign" exclusive to Survival Mode. It was introduced in Survival Pack—the first DLC for Left 4 Dead.