Name Developer Publisher Genre(s) Operating system(s) Date released Half-Life Valve , Gearbox Software Sierra Entertainment First-person shooter Microsoft Windows , Linux , macOS November 19, 1998 Half-Life 2 Valve Valve, Sierra Entertainment First-person shooter Microsoft Windows , Linux , macOS November 16, 2004 Half-Life: Blue Shift Valve , Gearbox Software Sierra Studios First-person shooter Microsoft Windows , Linux , macOS June 12, 2001 Half-Life Deathmatch: Source Valve Valve First-person shooter Microsoft Windows , Linux , macOS May 1, 2006 Half-Life: Opposing Force Valve , Gearbox Software Sierra Studios First-person shooter Microsoft Windows , Linux , macOS November 10, 1999 Half-Life: Source Valve Valve First-person shooter Microsoft Windows , Linux , macOS June 1, 2004 Half-Life 2: Deathmatch Valve Valve First-person shooter Microsoft Windows , Linux , macOS November 30, 2004 Half-Life 2: Episode One Valve Valve First-person shooter Microsoft Windows , Linux , macOS June 1, 2006 Half-Life 2: Episode Two Valve Valve First-person shooter Microsoft Windows , Linux , macOS October 10, 2007 Half-Life 2: Lost Coast Valve Valve First-person shooter Microsoft Windows , Linux , macOS October 27, 2005 Half-Life: Alyx Valve Valve First-person shooter , VR game Microsoft Windows , Linux March 23, 2020 Halo: Combat Evolved Bungie , Gearbox Software , Westlake Interactive Microsoft Game Studios , MacSoft First-person shooter Microsoft Windows , macOS September 30, 2003 Halo: Combat Evolved Anniversary Microsoft Studios First-person shooter Microsoft Windows March 3, 2020 Halo 2 Bungie , Microsoft Game Studios , Pi Studios Microsoft Game Studios First-person shooter Microsoft Windows May 17, 2007 Halo Infinite 343 Industries Xbox Game Studios First-person shooter Microsoft Windows December 8, 2021 Halo: The Master Chief Collection 343 Industries Xbox Game Studios First-person shooter Microsoft Windows December 3, 2019 Halo Recruit Microsoft Studios First-person shooter Microsoft Windows October 17, 2017 Halo: Spartan Assault Microsoft Studios Twin-stick shooter Microsoft Studios July 18, 2013 Halo: Spartan Strike Microsoft Studios Twin-stick shooter Microsoft Studios April 16, 2015 Halo Wars 2 Microsoft Studios Real-time strategy Hard Truck Apocalypse Targem Games Buka Entertainment Vehicular combat Microsoft Windows June 19, 2006 Harvester DigiFX Interactive Merit Studios, Virgin Interactive , Night Dive Studios Adventure DOS , Microsoft Windows , Linux September 25, 1996 A Hat in Time Gears for Breakfast Humble Bundle Adventure , platforming Microsoft Windows , macOS 2017 Hatoful Boyfriend: A School of Hope and White Wings PigeoNaton, Mediatonic MIST[PSI]PRESS , Devolver Digital Visual novel , dating simulation , otome game , nakige Microsoft Windows , Linux , macOS August 24, 2014 Hearthstone Blizzard Entertainment Blizzard Entertainment Digital collectible card game Microsoft Windows , macOS March 11, 2014 Hearts of Iron Paradox Development Studios Strategy First Grand strategy Microsoft Windows , macOS November 24, 2002 Hearts of Iron II Paradox Development Studios Paradox Interactive Grand strategy Microsoft Windows , macOS January 4, 2005 Hearts of Iron III Paradox Development Studios Paradox Interactive Grand strategy Microsoft Windows , macOS August 7, 2009 Hello Neighbor Dynamic Pixels tinyBuild Stealth , survival horror Microsoft Windows , macOS December 8, 2017 Helldivers 2 Arrowhead Game Studios Sony Interactive Entertainment Third-person shooter Heroes of the Lance U.S. Gold Strategic Simulations, Inc. RPG , fantasy MS-DOS , Amiga , Amstrad CPC , Atari ST , Commodore 64 , FM Towns , ZX Spectrum November 1, 1988 Heroes of Might and Magic: A Strategic Quest New World Computing New World Computing Turn-based strategy Microsoft Windows , DOS , Mac OS August 31, 1995 Heroes of Might and Magic II New World Computing The 3DO Company Turn-based strategy Microsoft Windows , DOS , Mac OS , RISC OS October 1, 1996 Heroes of Might and Magic III New World Computing The 3DO Company Turn-based strategy Microsoft Windows , Linux , Mac OS February 28, 1999 Heroes of Newerth S2 Games S2 Games MOBA Microsoft Windows , Linux , macOS May 12, 2010 Heroes of the Storm Blizzard Entertainment Blizzard Entertainment MOBA Microsoft Windows , macOS June 2, 2015 Hitman: Absolution IO Interactive , Feral Interactive Eidos Interactive , Feral Interactive Action-adventure , stealth Microsoft Windows , macOS November 19, 2012 Hitman: Blood Money IO Interactive Eidos Interactive Action-adventure , stealth Microsoft Windows May 30, 2006 Hitman: Codename 47 IO Interactive Eidos Interactive Action-adventure , stealth Microsoft Windows November 19, 2000 Hitman: Contracts IO Interactive Eidos Interactive Action-adventure , stealth Microsoft Windows April 20, 2004 Hitman 2: Silent Assassin IO Interactive Eidos Interactive Action-adventure , stealth Microsoft Windows October 1, 2002 Hitman IO Interactive , Feral Interactive Square Enix Action-adventure , stealth Microsoft Windows , macOS March 11, 2016 Hitman 2 IO Interactive , Feral Interactive Warner Bros. Interactive Entertainment Action-adventure , stealth Microsoft Windows , macOS November 9, 2018 Hitman III IO Interactive , Feral Interactive [Unknown] Action-adventure , stealth Microsoft Windows , macOS January 2021 Hogs of War Infogrames Studios Infogrames Europe Turn-based tactics , artillery Microsoft Windows November 3, 2000 Hollow Knight Team Cherry Team Cherry Action adventure , Metroidvania Microsoft Windows , macOS , Linux February 24, 2017 Homeworld Relic Entertainment Sierra Entertainment Real-time strategy , real-time tactics , space simulation Microsoft Windows September 28, 1999 Homeworld: Cataclysm Barking Dog Studios Sierra Entertainment Real-time strategy Microsoft Windows June 30, 2000 Homeworld 2 Relic Entertainment Sierra Entertainment Real-time strategy Microsoft Windows , macOS September 16, 2003 Homeworld: Deserts of Kharak Blackbird Interactive Gearbox Software Real-time strategy Microsoft Windows , macOS January 20, 2016 Hotline Miami Dennaton Games Devolver Digital Action , top-down shooter Microsoft Windows , Linux , macOS October 23, 2012 Hotline Miami 2: Wrong Number Dennaton Games Devolver Digital Action , top-down shooter Microsoft Windows , Linux , macOS March 10, 2015 Hugo's House of Horrors Gray Design Associates Gray Design Associates Adventure , survival horror Microsoft Windows , DOS 1990