Half-Life 2 is a 2004 first-person shooter (FPS) game developed and published by Valve Corporation. It was published for Windows on Valve's digital distribution...

Half-Life is a series of first-person shooter (FPS) games created by Valve. The games combine shooting combat, puzzles and storytelling. The original...

and the sequels Half-Life 2 (2004), Half-Life 2: Episode One (2006), Half-Life 2: Episode Two (2007) and Half-Life: Alyx (2020). Half-Life is a first-person...

Half-Life 2: Episode Two is a 2007 first-person shooter game developed and published by Valve. Following Episode One (2006), it is the second of two shorter...

Half-Life 2: Episode Three is a canceled first-person shooter game developed by Valve. It was planned as the last in a trilogy of episodic games continuing...

Half-Life 2: Episode One is a 2006 first-person shooter game developed and published by Valve for Windows. It continues the story of Half-Life 2 (2004);...

Half-Life 2: Deathmatch is a multiplayer first-person shooter video game developed by Valve. Released on Steam on November 30, 2004, it uses many of the...

This is a list of characters in the Half-Life video game series, which comprises Half-Life, Half-Life 2, Half-Life: Alyx, and their respective expansion...

before Half-Life 2 (2004), players control Alyx Vance on a mission to seize a superweapon belonging to the alien Combine. Like previous Half-Life games...

They are encountered throughout Half-Life 2, Half-Life 2: Episode One, and Half-Life 2: Episode Two, as well as Half-Life: Alyx, as hostile non-player characters...

Half-life (symbol t½) is the time required for a quantity (of substance) to reduce to half of its initial value. The term is commonly used in nuclear physics...

Half-Life 2: Lost Coast is an additional level for the 2004 first-person shooter game Half-Life 2. Developed by Valve, it was released on October 27,...

Half-Life is a series of first-person shooter games created and published by Valve. Since the release of the original Half-Life for Windows in 1998, several...

Half-life is a mathematical and scientific description of exponential or gradual decay. Half-life, half life or halflife may also refer to: Half-Life...

Biological half-life (elimination half-life, pharmacological half-life) is the time taken for concentration of a biological substance (such as a medication)...

released as part of the PlayStation 2 version of Half-Life in 2001. It is the third expansion pack for Half-Life, and like its predecessors, Decay returns...

game engine created by Valve for most of their games, including Half-Life, Team Fortress 2, and Portal, as well as licensed to third parties. This list is...

five games developed and published by Valve. Two of the games included, Half-Life 2 and its first stand-alone expansion, Episode One; had previously been...

those directed by John Woo. Action Half-Life is the second mod in the "Action" series. The first was Action Quake 2 and the third was Action Unreal Tournament...

GoldSrc was succeeded by the Source engine with the releases of Half-Life: Source, Half-Life 2, and Counter-Strike: Source in 2004. The basis of GoldSrc is...

Half-Life VR but the AI Is Self-Aware (sometimes shortened to Half-Life VR: Self Aware AI and abbreviated HLVR: AI) is a role-playing themed livestream...

This is a list of GoldSrc mods (modifications) for the video game Half-Life. Cry of Fear – The spiritual successor of Afraid of Monsters, it puts the...

successor to GoldSrc in 2004 with the releases of Half-Life: Source, Counter-Strike: Source, and Half-Life 2. Other notable third-party games using Source...

followed by Half-Life 2 (2004), the episodic sequels Half-Life 2: Episode One (2006) and Episode Two (2007), the multiplayer games Team Fortress 2 (2007) and...

Two and a Half Men is an American television sitcom created by Chuck Lorre and Lee Aronsohn that originally aired on CBS from September 22, 2003, to February...

Half-Life: Echoes is a modification of the first-person shooter video game Half-Life created by British developer James "MrGnang" Coburn and released on...

Half-Life: Blue Shift is an expansion pack for the first-person shooter video game Half-Life (1998). It was developed by Gearbox Software and published...

Half-Life: Opposing Force is an expansion pack for the first-person shooter game Half-Life. It was developed by Gearbox Software and published by Sierra...

episodes for Half-Life 2 and later packaged those games together with the puzzle game Portal and the multiplayer shooter Team Fortress 2 in a collection...

In pharmacokinetics, the effective half-life is the rate of accumulation or elimination of a biochemical or pharmacological substance in an organism;...