Half-Life: Opposing Force

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: 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.

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.

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.

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.

Black Mesa is a re-envisioning of Valve Software's classic science fiction first person shooter, Half-Life. Powered by Source Engine, You will re-visit the inaugural role of Gordon Freeman and his memorable journey through the Black Mesa Research Facility. Expect detailed environments to explore, a huge cast of characters and experimental weaponry. All-new music, voice acting, choreography and added dialogue give way to a more expansive and immersive experience than ever before.

Black Mesa: Definitive Edition includes performance improvements with a higher frame rate in some levels and visual upgrades, as well as all new and expanded Xen levels.

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.

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.

In this FPS, you travel across a remote island off the coast of Russia ripping through space and time, and are given your own Time Manipulation Device of which you use to vaporize enemies. You can upgrade your TMD, yourself, and weapons throughout the campaign which is reminiscent of every modern shooter from the Call of Duty Modern Warfare and World at War series to Half Life 2, and F.E.A.R. Time is power. Multiplayer included but is no longer filled with an active community.

Rogue Warrior is a character-driven, first-person-shooter, featuring Richard Demo Dick Marcinko's explosive personality in an action-packed single player campaign, and intense multiplayer combat.

Set in 2069, Syndicate takes players into a dark, Machiavellian world run without government oversight with many syndicates vying for total dominance of their local market place. With no one to question their intentions or actions, three mega corporations - Eurocorp, Cayman Global, and Aspari - are at the forefront of this brutal war for control of the pivotal American market. In the world of Syndicate, everything is digitally connected, including the people. Players aren't limited to the weapons in their hands. Through DART 6 bio-chip technology implanted in their head, players can slow down time and breach the digital world around them to take down their foes using a variety of upgradable hacking mechanics. Syndicate's blend of fast-paced, futuristic, action shooter settings and story combined with innovative chip breach gameplay instantly immerses players in a unique digital world.

Quake 4 is a action shooter game which serves as the another chapter in the Quake series.

Wolfenstein: The New Order is an action-adventure shooter game played from a first-person perspective. It is the semi-sequel to 2009's Wolfenstein, however utilizes very little from the game and drops any direct references to veil or supernatural. To progress through the story, the player battle enemies throughout levels. The game utilizes a health system in which players' health is divided into separate sections that regenerate; if an entire section is lost, the player must use a health pack to replenish the missing health. In combat, a cover system can be used as assistance against enemies. The player have the ability to lean around, over, and under cover, which can be used as a tactical advantage during shootouts and stealth levels. The game gives the player a wide variety of weapon options—they can be found on the ground, retrieved from dead enemies, or removed from their stationary position and carried around.

Call of Duty is a first-person shooter set during World War II, developed by Infinity Ward using a modified id Tech 3 engine. The single-player campaign spans three separate perspectives, with the player controlling American, British, and Soviet soldiers across the European theater. Gameplay emphasizes squad-based combat with AI-controlled allies who support the player during missions, making use of authentic period firearms, iron sight aiming, and a health point system with medkits.

Developed by id software, the studio that pioneered the first-person shooter genre and created multiplayer Deathmatch, Doom returns as a brutally fun and challenging modern-day shooter experience. Relentless demons, impossibly destructive guns, and fast, fluid movement provide the foundation for intense, first-person combat – whether you’re obliterating demon hordes through the depths of Hell in the single-player campaign, or competing against your friends in numerous multiplayer modes. Expand your gameplay experience using Doom SnapMap game editor to easily create, play, and share your content with the world.

Max Payne 3 is a third-person shooter in which the player assumes the role of its titular character, Max Payne. A new feature to the series, introduced in Max Payne 3, is the cover system, which allows players to gain a tactical advantage, and avoid taking damage from enemies. To progress through the linear story, players take on enemies throughout levels. The game features interactive cutscenes which transition seamlessly into continuing gameplay; there are no loading screens across gameplay and cutscenes.