| K-pop Idol Stories: Road to Debut | 2026 | — | Microsoft Windows, Nintendo Switch, PlayStation 5, Xbox Series X and Series S |
| K240 | 1994 | — | Commodore Amiga, DOS, Atari ST |
| Kagero: Deception II | 1998 | Tecmo | PlayStation, PlayStation 3, PlayStation Portable |
| Kairo | 2013 | Locked Door Puzzle | Microsoft Windows, macOS, Linux, iOS, Android |
| Kameo | 2005 | Rare Ltd. | Xbox 360 |
| Kami | 2013 | State of Play | Microsoft Windows, macOS, Nintendo 3DS, iOS, iPadOS |
| Kami 2 | 2017 | State of Play | iOS, iPadOS, Android |
| Kamicrazy | 2008 | — | iOS |
| Kane | 1986 | — | ZX Spectrum, Amstrad CPC, Commodore 64 |
| Kane & Lynch 2: Dog Days | 2010 | IO Interactive | PlayStation 3, Microsoft Windows, Xbox 360 |
| Kane & Lynch: Dead Men | 2007 | IO Interactive | PlayStation 3, Microsoft Windows, Xbox 360 |
| Kane 2 | 1988 | — | Commodore 64 |
| Karaoke Revolution | 2009 | Blitz Games | PlayStation 3, Xbox 360, Wii |
| Karaoke Revolution Presents: American Idol | — | Blitz Games Studios | PlayStation 2 |
| Karaoke Revolution Presents: American Idol Encore | 2008 | Blitz Games Studios | PlayStation 2, PlayStation 3, Xbox 360, Wii |
| Karaoke Revolution Presents: American Idol Encore 2 | 2008 | Blitz Games Studios | PlayStation 3, Xbox 360, Wii |
| Karma | — | — | Acorn Archimedes |
| Karma: The Dark World | 2025 | — | Microsoft Windows, PlayStation 5, Xbox Series X and Series S |
| Karma: The Flight Trainer | 1991 | — | Acorn Archimedes |
| Kart Racer | 2009 | Brain in a Jar | Wii |
| Karyssia: Queen of Diamonds | 1987 | Incentive Software | ZX Spectrum |
| Kasumi Ninja | 1994 | Hand Made Software | Atari Jaguar |
| Katy and Bob Way Back Home | 2017 | Creobit | Microsoft Windows |
| Katy and Bob: Cake Café | 2018 | Workroom7 | Microsoft Windows, macOS |
| Katy and Bob: Safari Cafe | 2017 | — | Microsoft Windows |
| Kawasaki Jet Ski | 2008 | Data Design Interactive | Wii |
| Kawasaki Quad Bikes | 2007 | Data Design Interactive | Wii |
| Kawasaki Snowmobiles | 2008 | Data Design Interactive | Wii |
| Kayleth | 1986 | Adventure Soft | ZX Spectrum, Acorn Electron, Amstrad CPC, BBC Micro, Commodore 16 and Plus/4, Commodore 64 |
| Kelly Slater's Pro Surfer | 2002 | HotGen | PlayStation 2, Xbox, Classic Mac OS, Microsoft Windows, Nintendo GameCube, Game Boy Advance |
| Ken Griffey, Jr. Presents Major League Baseball | 1994 | Software Creations | Super Nintendo Entertainment System |
| Ken Griffey, Jr.'s Winning Run | 1996 | Rare Ltd. | Super Nintendo Entertainment System |
| Kenny Dalglish Soccer Manager | 1989 | Eutechnyx | ZX Spectrum, Amstrad CPC, Commodore 64 |
| Kenny Dalglish Soccer Match | 1990 | Impressions Games | ZX Spectrum, Amstrad CPC, Atari ST, Commodore 64 |
| Kenny vs. Spenny: Versusville | 2004 | DC Studios | Microsoft Windows |
| Kenshi | 2018 | Lo-Fi Games | Microsoft Windows |
| Kentilla | 1984 | — | ZX Spectrum, Amstrad CPC, Commodore 64 |
| Kentucky Racing | 1990 | Bizarre Developments | ZX Spectrum, Amstrad CPC, Commodore 64 |
| Kettle | 1986 | Antony Crowther | Amstrad CPC, Commodore 64 |
| Kevin Keegan's Player Manager | 1993 | Anco Software | Super Nintendo Entertainment System |
| KeyWe | 2021 | Stonewheat & Sons | Xbox One, Microsoft Windows, Nintendo Switch, PlayStation 4, PlayStation 5, Xbox Series X and Series S |
| KGB Agent | 1987 | — | Commodore 64 |
| Kharé: Cityport of Traps | 2013 | Inkle | Microsoft Windows, iOS, Android |
| Ki11er Clutter | 2021 | Puzzles By Joe | Microsoft Windows |
| Kickoff '97 | — | — | Microsoft Windows, DOS |
| Kid Chaos | 1994 | Magnetic Fields | Commodore Amiga, Microsoft Windows |
| Kid Gloves | 1990 | — | Commodore Amiga, Atari ST |
| Kid Kirby | — | Rockstar North | Super Nintendo Entertainment System |
| Kidz Sports Basketball | 2004 | Data Design Interactive | PlayStation 2, Microsoft Windows, Wii |
| Kidz Sports Crazy Mini Golf | 2008 | Data Design Interactive | Wii |
| Kidz Sports Ice Hockey | 2008 | Data Design Interactive | PlayStation 2, Wii |
| Kidz Sports International Soccer | 2008 | Data Design Interactive | Wii |
| Kidz Sports: American Football | — | Data Design Interactive | Wii |
| Kidz Sports: Baseball | — | Data Design Interactive | Wii |
| Kidz Sports: Crazy Mini Golf 2 | 2009 | Data Design Interactive | Wii |
| Kikstart 2 | 1987 | — | Commodore 128, ZX Spectrum, Amstrad CPC, Commodore 64 |
| Kikstart: Off-Road Simulator | 1985 | — | Atari 8-bit family, Commodore 64 |
| Kill the Brickman | 2025 | — | Xbox One, Microsoft Windows, Xbox Series X and Series S |
| Killer Frequency | 2023 | Team17 | Xbox One, Microsoft Windows, Nintendo Switch, PlayStation 4, PlayStation 5, Xbox Series X and Series S |
| Killer Gorilla | 1983 | — | Amstrad CPC, BBC Micro |
| Killer Instinct | 1994 | Rare Ltd. | Xbox One, Super Nintendo Entertainment System, Nintendo 64, Game Boy, arcade video game machine, R4600 |
| Killer Instinct 2 | 1996 | Rare Ltd. | Xbox One, arcade video game machine |
| Killer Instinct Gold | 1996 | Rare Ltd. | Nintendo 64 |
| Killer Kong | 1983 | — | ZX Spectrum |
| Killer Watt | 1983 | Antony Crowther | Commodore 64 |
| Killzone | 2004 | Sony Interactive Entertainment, Guerrilla Games | PlayStation 2, PlayStation 3 |
| Killzone 2 | 2009 | Sony Interactive Entertainment, Guerrilla Games | PlayStation 3 |
| Killzone: Mercenary | 2013 | Guerrilla Cambridge | PlayStation Vita |
| Kim | 2016 | — | Microsoft Windows, macOS |
| Kinect Nat Geo TV | 2012 | Relentless Software | Xbox 360 |
| Kinect Sesame Street TV | 2012 | Xbox Game Studios | Xbox 360 |
| Kinect Sports | 2010 | Rare Ltd. | Xbox 360 |
| Kinect Sports Rivals | 2014 | Rare Ltd. | Xbox One |
| Kinect Sports: Season Two | 2011 | Rare Ltd. | Xbox 360 |
| Kinect: Disneyland Adventures | 2011 | Asobo Studio, Frontier Developments | Xbox One, Microsoft Windows, Xbox 360 |
| Kinectimals | 2010 | Frontier Developments | Xbox 360, iOS, Windows Phone, Android |
| King Arthur's Quest | — | — | ZX Spectrum |
| King Arthur's World | 1993 | Argonaut Games | Super Nintendo Entertainment System |
| King of Clubs | 2007 | Oxygen Studios | PlayStation 2, Microsoft Windows, Nintendo DS, Wii |
| King of Seas | 2021 | 3DClouds | Xbox One, Microsoft Windows, Nintendo Switch, PlayStation 4 |
| King of Thieves | 2015 | ZeptoLab | iOS, Android |
| King's Bounty II | 2021 | 1C Company | Xbox One, Microsoft Windows, personal computer, Nintendo Switch, PlayStation 4 |
| Kingdom Come: Deliverance | 2018 | Warhorse Studios | Xbox One, Microsoft Windows, Nintendo Switch, PlayStation 4, PlayStation 5, Xbox Series X and Series S |
| Kingdom Come: Deliverance II | 2025 | Warhorse Studios | Microsoft Windows, PlayStation 5, Xbox Series X and Series S |
| Kingdom O' Magic | 1996 | Eidos Interactive | DOS |
| Kingdom Two Crowns | 2018 | — | Xbox One, Microsoft Windows, macOS, Nintendo Switch, Linux, PlayStation 4 |
| Kingsley's Adventure | 1999 | SCE Studio Liverpool | PlayStation |
| Kirel | 1986 | — | ZX Spectrum |
| Kissin' Kousins | 1985 | — | Atari 8-bit family, Acorn Electron, BBC Micro |
| Kitaria Fables | 2021 | — | Microsoft Windows, Nintendo Switch, PlayStation 4, PlayStation 5 |
| Kitten Sanctuary | 2012 | — | iOS, Android |
| Kitty Powers' Matchmaker | 2014 | — | Microsoft Windows, macOS, iOS, PlayStation 4, Android |
| Knight Games | 1986 | — | MS-DOS, Amstrad CPC, Commodore 64 |
| Knight Lore | 1984 | Aackosoft, Stamper brothers, Rare Ltd. | Famicom Disk System, Nintendo Entertainment System, ZX Spectrum, Amstrad CPC, MSX |
| Knight Moves | 1995 | Kinesoft | Microsoft Windows |
| Knight Orc | 1987 | Level 9 Computing | Classic Mac OS, DOS, ZX Spectrum, Amstrad CPC, MSX, Commodore 64 |
| Knight Rider | 1986 | — | ZX Spectrum, Amstrad CPC, Commodore 64 |
| Knight Solitaire | 2020 | Creobit | Microsoft Windows |
| Knight Solitaire 2 | 2023 | Creobit | Microsoft Windows |
| Knight Solitaire 3 | 2022 | Creobit | Microsoft Windows |
| Knight Tyme | 1986 | David Jones | ZX Spectrum, Amstrad CPC, MSX, Commodore 64 |
| Knighthood | 2018 | Midoki | iOS, iPadOS, Android |
| Knightmare | 1991 | — | Commodore Amiga, Atari ST |
| Knightmare | 1987 | — | ZX Spectrum, Amstrad CPC, Atari ST, Commodore 64 |
| Knights and Bikes | 2019 | — | Microsoft Windows, macOS, Nintendo Switch, Linux, PlayStation 4 |
| Knights in Tight Spaces | 2025 | Ground Shatter | Microsoft Windows |
| Knights of the Fall | — | — | Microsoft Windows |
| Knot in 3D | 1983 | Malcolm Evans | ZX Spectrum |
| Knowledge Is Power | 2017 | PlayStation Mobile, Inc. | PlayStation 4 |
| Knytt Underground | 2013 | — | PlayStation 3, Microsoft Windows, macOS, PlayStation Vita, Linux, Wii U |
| Kobayashi Naru | 1987 | — | ZX Spectrum, Commodore 64 |
| Kohan | 2001 | TimeGate Studios | IBM PC compatible |
| Kohan: Ahriman's Gift | 2001 | TimeGate Studios | Microsoft Windows |
| Kohan: Immortal Sovereigns | 2001 | TimeGate Studios | Microsoft Windows, Linux |
| Kokotoni Wilf | 1984 | — | ZX Spectrum, Amstrad CPC, Commodore 64 |
| Kona | 2017 | Parabole | Xbox One, Microsoft Windows, macOS, Nintendo Switch, Linux, PlayStation 5, Xbox Series X and Series S |
| Kong Strikes Back! | — | — | ZX Spectrum, Amstrad CPC |
| Konung: Legends of the North | 2000 | Strategy First | Microsoft Windows |
| Korsakovia | 2009 | The Chinese Room | Microsoft Windows |
| Kotodama: The 7 Mysteries of Fujisawa | 2019 | — | Microsoft Windows, Nintendo Switch, PlayStation 4 |
| Krakout | 1987 | Gremlin Interactive | ZX Spectrum, Amstrad CPC, MSX, Commodore 64 |
| Krazy Ivan | 1996 | — | PlayStation, Microsoft Windows, Sega Saturn |
| Krinkle Krusher | 2015 | — | PlayStation 3, Microsoft Windows, PlayStation Vita, PlayStation 4 |
| Krusty's Fun House | 1992 | Audiogenic | Commodore Amiga, Sega Genesis/Mega Drive, DOS, Nintendo Entertainment System, Super Nintendo Entertainment System, Sega Master System |
| Kudos | 2006 | Positech Games | Microsoft Windows |
| Kudos 2 | 2008 | Positech Games | Microsoft Windows, macOS |
| Kudos: Rock Legend | 2007 | Positech Games | Classic Mac OS, Microsoft Windows |
| Kung Food | 1992 | — | Atari Lynx |
| Kung Fu Chaos | 2003 | Ninja Theory | Xbox |
| Kursk - Battle at Prochorovka | 2017 | Yobowargames | Microsoft Windows, macOS |
| Kusan: City of Wolves | 2026 | — | Microsoft Windows, Nintendo Switch, PlayStation 5, Xbox Series X and Series S |
| Kwik Snax | 1990 | Oliver Twins | Commodore Amiga, DOS, ZX Spectrum, Amstrad CPC, Atari ST, Commodore 64 |
| Kye | 1992 | — | — |