| G Prime Into The Rain | simulation video game | — | Microsoft Windows, macOS |
| G-Police | — | SCE Studio Liverpool | Microsoft Windows |
| G.O.D: Mezameyo to Yobu Koe ga Kikoe | — | — | Super Nintendo Entertainment System |
| G.O.M.P! | casual game, action game | — | Microsoft Windows |
| G.O.P.O.T.A | casual game, simulation video game, adventure video game, action game, action-adventure game, strategy video game, role-playing video game, racing video game, sports video game | — | Microsoft Windows |
| G1 Jockey 4 2007 | horse racing video game | Koei | PlayStation 3 |
| Gachi Heroes | casual game, simulation video game, adventure video game, action game, action-adventure game, role-playing video game | — | Microsoft Windows |
| Gado Fight | action game | — | Microsoft Windows |
| Gakkou no kowai uwasa - Hanako Sangakita!! | horror video game | — | Nintendo DS |
| Gakkō Yarashii Kaidan: Konna Hazukashii Jorei Sasenaide! | eroge, visual novel | — | Microsoft Windows |
| Gakuen Alice: Kira Kira Memory Kiss | adventure video game | — | — |
| Gakuen Sodom: Kyōshitsu no Mesu Dorei-tachi | eroge | — | — |
| Gal*Gun: Double Peace | — | Inti Creates | Microsoft Windows, PlayStation Vita |
| Gal-X-E | — | Volens Nolens Games | Microsoft Windows |
| Galactic Civilizations | — | Stardock | Microsoft Windows |
| Galactic Express | casual game | HipSoft | Microsoft Windows |
| Galactic Protector | shoot 'em up | Q122741 | — |
| Galacticon | action game | — | Microsoft Windows |
| Galaga 30th Collection | — | — | — |
| Galaga Legions | shoot 'em up | Bandai Namco Entertainment | — |
| Galaga Remix | shooter game | Bandai Namco Holdings | — |
| GALAHAD 3093 | shooter game | Simutronics | Microsoft Windows |
| GALAXIUM | casual game, action game | — | Microsoft Windows, macOS |
| Galaxy Angel | dating sim, strategy video game | Broccoli | Microsoft Windows |
| Galaxy Angel II Mugen Kairō no Kagi | dating sim | Broccoli | — |
| Galaxy Ball | rolling platformer | — | Microsoft Windows, macOS |
| Galaxy Cannon Rider | — | — | Microsoft Windows |
| Galaxy Crash | — | — | Microsoft Windows |
| Galaxy Life | strategy video game | — | Microsoft Windows, Linux |
| Galaxy on Fire 2 | space trading and combat game | Fishlabs | Microsoft Windows, Android |
| Galaxy Shooter DX | — | InLogic Software | Xbox Series X and Series S |
| Gale of Windoria | simulation video game, adventure video game, strategy video game, role-playing video game | Hit-Point | Microsoft Windows, Xbox Series X and Series S |
| Galilei 2: Seikkailujen saari | adventure video game | — | Microsoft Windows |
| Galimulator | — | — | Microsoft Windows, macOS, Linux |
| Gallop Racer 2004 | horse racing video game | — | — |
| Gallop Racer 2006 | horse racing video game | — | — |
| Galpa the no limbs guy | action game | — | Microsoft Windows |
| Game & Watch: Gold Cliff | — | — | Game & Watch series |
| Game & Watch: Octopus | action game | — | Amstrad CPC Plus, Game & Watch series, Amstrad GX4000 |
| Game Breaker | adventure video game | — | Microsoft Windows |
| Game Builder Garage | educational video game, programming game | Nintendo Entertainment Planning & Development | — |
| Game Corp DX | simulation video game | Endless Loop Studios | Microsoft Windows, macOS, Linux |
| Game Developer Simulator | casual game, simulation video game, strategy video game | — | Microsoft Windows |
| Game no Tetsujin - The Shanghai | — | — | Super Nintendo Entertainment System |
| Game of Heroes: Three Kingdoms | — | — | Microsoft Windows, macOS, web browser, Android |
| Game of Lust | casual game, adventure video game, strategy video game | — | Microsoft Windows |
| Game Of Puzzles: Furry | — | — | Microsoft Windows |
| Game of Stones | tile-matching video game | — | Microsoft Windows |
| Game of Thrones: Beyond the Wall | — | — | Microsoft Windows |
| Game of Thrones: Seven Kingdoms | massively multiplayer online role-playing game, fantasy video game | Bigpoint GmbH | web browser |
| GameCenter CX: 3-Choume no Arino | action game | G.rev, M2 | Nintendo 3DS |
| Gamma Space | casual game, adventure video game, action game, action-adventure game | QuickBobber | Microsoft Windows |
| Ganbare Goemon Daishuugo! | — | Konami Digital Entertainment, M2 | Microsoft Windows |
| Ganbare Goemon: Hoshizorashi Dynamites Arawaru!! | action-adventure game | Konami | Game Boy Color |
| Ganbare Goemon: Kuru Nara Koi! Ayashige Ikka no Kuroi Kage | action-adventure game | — | — |
| Ganbare Goemon: Sarawareta Ebisumaru! | platform game | Konami | Game Boy |
| Gang of Four | — | — | Microsoft Windows, macOS |
| Gangsta Sniper 3: Final Parody | adventure video game, action game, action-adventure game | — | Microsoft Windows |
| Ganryu 2 | platform game | Storybird Studio | Microsoft Windows, Xbox Series X and Series S |
| Garage Master 2018 | — | — | Microsoft Windows |
| Garden Galaxy | casual game | — | Microsoft Windows |
| Garden of Seif: Curse of Gravehollow Peaks | casual game | — | Microsoft Windows, macOS |
| Garden Tails: Match and Grow | match-three video game | Playdots | macOS |
| Garden Tale | simulation video game, strategy video game | — | Microsoft Windows |
| Garfield: Big Fat Hairy Deal | — | Edge Games | ZX Spectrum, Amstrad CPC, Atari ST, Commodore 64 |
| Garfield: Winter's Tail | — | Edge Games | ZX Spectrum, Amstrad CPC, Atari ST, Commodore 64 |
| Gargoyle's Quest | platform game | Capcom | Game Boy |
| Garou: Mark of the Wolves | fighting game | SNK | Neo Geo, Microsoft Windows, PlayStation Portable, Android |
| Garten of Banban 8 | casual game, adventure video game, action game, action-adventure game | — | Microsoft Windows |
| Gary Grigsby's War in the East 2 | — | 2by3 Games | Microsoft Windows |
| Gary Grigsby's War in the West | — | 2by3 Games | Microsoft Windows |
| Gary Lineker's Superstar Soccer | — | — | ZX Spectrum, Amstrad CPC, MSX, Commodore 64 |
| Gas Guzzlers Extreme | racing video game | Gamepires | Microsoft Windows |
| Gas Station Simulator | simulation video game | Drago Entertainment | Microsoft Windows, Xbox Series X and Series S |
| Gates to Terra II | action game, strategy video game, role-playing video game | — | Microsoft Windows |
| Gateway to the Savage Frontier | tactical role-playing game | Stormfront Studios | DOS, Commodore 64 |
| Gauntlet Dark Legacy | role-playing video game | Atari Games | Nintendo GameCube, arcade video game machine |
| Gauntlet II | hack and slash, action game | Atari Games | PlayStation Portable, DOS, Nintendo Entertainment System, Game Boy, ZX Spectrum, Amstrad CPC, Atari ST, Commodore 64 |
| Gauntlet IV | action game | — | — |
| Gav-Gav Odyssey | adventure video game, action game, action-adventure game | HugePixel | Microsoft Windows, Xbox Series X and Series S |
| Gaze At Maze | casual game | Anamik Majumdar | Microsoft Windows, Linux |
| Gears of War: Judgment | post-apocalyptic video game, third-person shooter | Q739711 | — |
| Gears Pop! | — | Mediatonic | Microsoft Windows, Android |
| Gedonia | role-playing video game | Oleg Kazakov | Microsoft Windows |
| Geisterland | — | — | Microsoft Windows |
| Gem Deeps | adventure video game, action game, action-adventure game, role-playing video game | — | Microsoft Windows |
| GemCraft - Frostborn Wrath | action game, strategy video game | — | Microsoft Windows |
| Genderwrecked | visual novel, role-playing video game, LGBT-themed video game | — | Microsoft Windows, macOS, Linux |
| Gene Rain | — | — | Microsoft Windows |
| Genesis Masterwork Apocalypse | role-playing video game | NetEase | Android |
| Geniu$: The Tech Tycoon Game | strategy video game | Nebula Device | Microsoft Windows |
| Genjitsu ga Mietekita node Lolicon Yamemashita | eroge, visual novel, harem | — | Microsoft Windows |
| Genrin no kishōgun | eroge, role-playing video game | Eushully | Microsoft Windows |
| Genrō | otome game | — | PlayStation Portable |
| Gensou SkyDrift | racing video game | illuCalab | Microsoft Windows |
| Gensō Rōgoku no Kaleidoscope | visual novel | 07th Expansion | PlayStation Vita |
| Gentlemen! | — | Lucky Frame | Ouya, Microsoft Windows, macOS, Linux |
| Geocells Tricells | casual game, strategy video game | — | Microsoft Windows, macOS, Linux |
| Geometry Dash World | — | — | Android |
| Geometry Rocket | action game, racing video game | — | Microsoft Windows |
| Geometry Wars: Galaxies | — | Bizarre Creations, Kuju Ltd. | Nintendo DS, Wii |
| Geometry Wars: Touch | — | Bizarre Creations | — |
| Geon: Emotions | — | Strawdog Studios | — |
| Georifters | — | — | Microsoft Windows |
| Gerritory | casual game, action game, strategy video game, massively multiplayer online game | — | Microsoft Windows |
| Get Over Here | — | — | Microsoft Windows |
| Get To Work, Succubus-Chan! | — | — | Microsoft Windows, macOS |
| Get Together: A Coop Adventure | casual game, adventure video game | — | Microsoft Windows |
| Get Your Sheep Together | casual game, adventure video game | — | Microsoft Windows |
| Gex 3: Deep Cover Gecko | — | Crystal Dynamics | Nintendo 64 |
| Gex 3: Deep Pocket Gecko | — | — | Game Boy Color |
| GG Aleste | vertically scrolling shooter | — | — |
| Ghost Chaser | platform game | — | Atari 8-bit family, Commodore 64 |
| Ghost Files: The Face of Guilt | hidden object game | Brave Giant | Microsoft Windows, macOS, Linux |
| Ghost in the Sheet | adventure video game | CBE Software | Microsoft Windows |
| Ghost in the Shell: Stand Alone Complex | first-person shooter, shooter game | — | PlayStation Portable |
| Ghost Lion | role-playing video game | Kemco | Nintendo Entertainment System |
| Ghost Master | — | — | Classic Mac OS, Microsoft Windows, macOS, OnLive |
| Ghost Parade | adventure video game, action game, action-adventure game | — | Microsoft Windows |
| Ghost Song | Metroidvania | Old Moon | Microsoft Windows, Xbox Series X and Series S |
| Ghost Sync | role-playing video game | Exe-Create | Microsoft Windows, Android, Xbox Series X and Series S |
| Ghostbusters | — | — | — |
| Ghostbusters II | action game | Imagineering | Atari 2600, ZX Spectrum, Amstrad CPC, Atari ST, MSX, Commodore 64 |
| Ghostbusters II | action game | — | DOS |
| Ghostbusters: Sanctum of Slime | action-adventure game | Wanako Studios | PlayStation 3, Microsoft Windows |
| Ghostly Matter | adventure video game, action game, action-adventure game | — | Microsoft Windows |
| Ghosts of War: Battle Royale WW2 Shooting games | — | — | Microsoft Windows |
| Ghoul Panic | first-person shooter | — | arcade video game machine |
| Ghoul School | halloween video game, Metroidvania, action game, survival horror | Imagineering | Nintendo Entertainment System |
| Gianluca Vialli's European Manager | — | WaywardXS Entertainment S.r.l. | Microsoft Windows |
| Gibo no Toiki: Haitokushin ni Tadayō Haha no Iroka | eroge, visual novel | — | Microsoft Windows |
| GIBZ | adventure video game, action game, action-adventure game | — | Microsoft Windows |
| Giga Wing 2 | shoot 'em up | Takumi Corporation | arcade video game machine |
| Giga Wrecker | — | Game Freak | Microsoft Windows |
| Gigantosaurus The Game | — | WildSphere | Microsoft Windows |
| Gigantosaurus: Dino Kart | — | 3DClouds | Microsoft Windows, Xbox Series X and Series S |
| Ginga Denshō: Galaxy Odyssey | action role-playing game | — | Famicom Disk System |
| Ginka | visual novel | Front Wing | Microsoft Windows |
| Ginseng Hero | adventure video game, action game, action-adventure game | Sokpop Collective | Microsoft Windows, macOS |
| Girl Blonde | adventure video game | Laush Studio | Microsoft Windows |
| Girls & Dungeons 2 | — | — | Microsoft Windows, macOS |
| Girls slap | casual game, action game, role-playing video game | — | Microsoft Windows |
| Girls' RPG: Cinderella Life | — | Level-5 | Nintendo 3DS |
| Give Up Robot 2 | platform game | Maddy Thorson | web browser |
| Gladiator Guild Manager | simulation video game, strategy video game | — | Microsoft Windows, macOS |
| Gladiator: Road to the Colosseum | adventure video game, role-playing video game | Hosted Games | Microsoft Windows, macOS, Linux |
| Gladiator: Sword of Vengeance | — | Software Creations | Microsoft Windows |
| Gladio | action game | — | Microsoft Windows |
| Glare1more | — | kurenaibook | Microsoft Windows |
| GLASS2 | casual game, adventure video game | — | Microsoft Windows, macOS |
| GlassSmash | — | Anvate Games | Microsoft Windows |
| GlassSmash 2 | casual game | Anvate Games | Microsoft Windows |
| Glider Rider | — | — | ZX Spectrum, Amstrad CPC, Commodore 64 |
| Global Soccer Manager 2017 | casual game, simulation video game, strategy video game, sports video game | — | Microsoft Windows |
| Globle: Capitals | — | Trainwreck Labs | — |
| Gloom 3 | — | — | Amiga 1200 |
| Gloomgrave | roguelike, role-playing video game | — | Microsoft Windows |
| Gloomhaven | — | Flaming Fowl Studios | Microsoft Windows, macOS, Xbox Series X and Series S |
| Gloomhaven: Jaws of the Lion | — | Flaming Fowl Studios | Microsoft Windows, macOS |
| Gnomes Garden | — | — | Microsoft Windows |
| Gnomes Garden New home | — | — | Microsoft Windows |
| Go Vacation | party video game, sports video game | Bandai Namco Entertainment | Wii |
| Go! Puzzle | — | Zoonami | PlayStation 3 |
| Goat's Tale | casual game, adventure video game, action game, action-adventure game | — | Microsoft Windows |
| GoatUp | — | — | — |
| GoatUp 2 | — | — | — |
| Gobby McGobblenutz Presents - The Questionably Quirky Quiz Show | simulation video game, adventure video game | Randumb Studios | Microsoft Windows |
| Gobby McGobblenutz Presents: The Art of the Dad Joke: Chapter 1 | casual game, simulation video game, role-playing video game | Randumb Studios | Microsoft Windows |
| Gobliiins 5 | adventure video game | Pierre Gilhodes | Microsoft Windows |
| Gobliins 2: The Prince Buffoon | adventure video game, graphic adventure game | Coktel Vision | DOS, Atari ST |
| Goblin Cleanup | — | — | Microsoft Windows, Xbox Series X and Series S |
| Goblin Defenders: Steel‘n’ Wood | casual game, adventure video game, strategy video game | Alawar Entertainment | Microsoft Windows |
| God Eater 2 | post-apocalyptic video game, action role-playing game | Shift, QLOC | Microsoft Windows, PlayStation Vita |
| God Hand | — | — | Microsoft Windows |
| God of War: Ascension | hack and slash | Santa Monica Studio | PlayStation 3 |
| God of War: Betrayal | hack and slash, side-scrolling video game, action-adventure game | Javaground | Java virtual machine, Java Platform, Micro Edition |
| Goddess Of War Ashley Ⅱ | — | — | Microsoft Windows |
| Godlike Burger | simulation video game, strategy video game | Liquid Pug | Microsoft Windows, macOS, Linux, Xbox Series X and Series S |
| Gods | — | The Bitmap Brothers | Microsoft Windows, macOS, DOS, Super Nintendo Entertainment System, Acorn Archimedes, Atari ST |
| GODS: Lands of Infinity SE | — | Cypronia | Microsoft Windows |
| Godumas | adventure video game, action game, action-adventure game | — | Microsoft Windows |
| Godzilla Generations | B movie, action game | General Entertainment | — |
| Godzilla: The Series | action game | — | Game Boy Color |
| Godzilla: Unleashed | post-apocalyptic video game, B movie, science fiction video game, fighting game | Pipeworks Software | PlayStation Portable, Wii |
| Goggles - World of Vaporia | — | — | Microsoft Windows, macOS, Linux |
| Gold Drill | casual game | Edge Games | Microsoft Windows, Linux |
| Gold Miner | casual game | — | Microsoft Windows |
| Golden Axe III | hack and slash, side-scrolling beat 'em up | Q122741 | Microsoft Windows, macOS, Linux |
| Golden Axe: Beast Rider | hack and slash | Sega Studios San Francisco | PlayStation 3 |
| Golden Axe: The Duel | fighting game | Q122741 | Sega Titan Video |
| Golden Axe: The Revenge of Death Adder | hack and slash, side-scrolling beat 'em up | Q122741 | arcade video game machine |
| Golden Fire II | puzzle video game | — | arcade video game machine |
| Golden Oldies II: Blockbuster & Bughunt | shoot 'em up | The Vision Factory | Philips CD-i |
| Golden Rails: Road To Klondike | casual game, adventure video game, strategy video game | Yustas Games Studio | Microsoft Windows |
| Golden Sun: Dark Dawn | role-playing video game | Camelot Software Planning | Nintendo DS |
| Golden Treasure: The Great Green | simulation video game, adventure video game, role-playing video game | — | Microsoft Windows, macOS |
| GoldenEye 007: Reloaded | — | Eurocom | PlayStation 3 |
| Golf with the Lads | casual game, sports video game | — | Microsoft Windows |
| Golf's Best: St. Andrews - The Home of Golf | sports video game | — | DOS, Apple II, Commodore 64 |
| Golfinite | simulation video game, role-playing video game, sports video game | — | Microsoft Windows |
| Gone Fireflies | casual game, adventure video game | — | Microsoft Windows |
| Gone in November | adventure video game | — | Microsoft Windows |
| Good Girl | — | — | Microsoft Windows |
| Good Goods Incorporated | simulation video game, strategy video game | Sokpop Collective | Microsoft Windows, macOS |
| Good Night, Peregrine | — | — | Microsoft Windows |
| Good puzzle: Animals | casual game | Laush Studio | Microsoft Windows |
| Good puzzle: Music | casual game | Laush Studio | Microsoft Windows |
| Goofy Golf Deluxe | — | — | Classic Mac OS, Microsoft Windows |
| Goosebumps: The Game | casual game, adventure video game | — | Microsoft Windows |
| Gorbis Robotlabb | platform game | Gro Play | web browser, Android |
| Gord | action game, strategy video game | Covenant.dev | Microsoft Windows |
| Gore Screaming Show | eroge, horror video game, visual novel | — | Microsoft Windows |
| Gotcha | casual game, action game | — | Microsoft Windows |
| Gothic | action role-playing game, role-playing video game | Piranha Bytes | Microsoft Windows |
| Gothic 1881 | adventure video game | — | Microsoft Windows |
| Gothic 3: The Beginning | role-playing video game | THQ Nordic Mobile | Java virtual machine, Java Platform, Micro Edition |
| Gozonji Yajikita Chindochu | — | Hyperware | Nintendo Entertainment System |
| GP Challenge | — | Midas Interactive Entertainment | Microsoft Windows |
| GrabBag | — | — | Microsoft Windows |
| Grace | casual game, adventure video game | — | Microsoft Windows, macOS |
| Gradius | shoot 'em up | Konami | TurboGrafx-16, NEC PC-8800 series, Nintendo Entertainment System, Sharp X68000, arcade video game machine, ZX Spectrum, Amstrad CPC, Wii U, MSX, Commodore 64 |
| Gradius V | shoot 'em up | Treasure | — |
| GraFi 3 | casual game, simulation video game, adventure video game, strategy video game | Blender Games | Microsoft Windows |
| GraFi Lunar | casual game, simulation video game, adventure video game, strategy video game | Blender Games | Microsoft Windows |
| Graham Gooch World Class Cricket | — | Audiogenic | — |
| Grammarian Ltd | casual game, simulation video game, adventure video game | — | Microsoft Windows |
| Gran Turismo 4 Online Test Version | racing video game | Polyphony Digital | — |
| Granblue Fantasy | action game, science fiction video game, gacha game, role-playing video game | Cygames | Microsoft Windows, web browser, Android |
| Granblue Fantasy Versus | fighting game | Arc System Works | Microsoft Windows |
| Granblue Fantasy Versus: Rising | airdasher | Arc System Works | Microsoft Windows |
| Grand Academy for Future Villains | adventure video game, role-playing video game | Choice of Games | Microsoft Windows, macOS, Linux |
| Grand Academy II: Attack of the Sequel | adventure video game, role-playing video game | Choice of Games | Microsoft Windows, macOS, Linux |
| Grand Cross Gold | — | — | arcade video game machine |
| Grand Theft Auto 2 | — | — | Microsoft Windows, Game Boy Color |
| Grand Theft Auto 64 | — | — | Nintendo 64 |
| Grand Theft Auto: Vice City Stories | — | Rockstar Leeds | PlayStation 3, PlayStation Portable |
| Grandia III | role-playing video game | Game Arts | — |
| Grandia Online | massively multiplayer online role-playing game | Game Arts | Microsoft Windows |
| Grandia: Parallel Trippers | role-playing video game | Game Arts | Game Boy Color |
| GRANDREAD | — | — | — |
| Grapple Dog | — | Medallion Games | Microsoft Windows, Xbox Series X and Series S |
| Grapple Dogs: Cosmic Canines | — | Medallion Games | Microsoft Windows, Xbox Series X and Series S |
| Grasspin | — | Ultimate Play the Game | — |
| Gratuitous Animal Massacre | — | — | Microsoft Windows |
| Grav Blazer | — | Ripknot Systems | Microsoft Windows |
| Grav Blazer Squared | — | Ripknot Systems | Microsoft Windows |
| Grave Keeper | casual game, adventure video game, action game, action-adventure game, role-playing video game | — | Microsoft Windows |
| Grave Robber | action game | — | Microsoft Windows |
| Gravewood High | horror video game | HeroCraft | Microsoft Windows |
| Graviteam Tactics: Mius-Front | simulation video game, strategy video game | — | Microsoft Windows |
| Graviton | — | — | Microsoft Windows, macOS |
| Gravity Ace | twin-stick shooter | — | Microsoft Windows, Linux |
| Gravity Force | — | — | Atari ST |
| Gravity Rush | action-adventure game | Q2708014, Project Siren | PlayStation Vita |
| Gray Death | casual game, adventure video game, action game, action-adventure game | — | Microsoft Windows |
| Gray platformer | casual game | Laush Studio | Microsoft Windows |
| Grayland | side-scrolling video game, adventure video game, action-adventure game | — | Microsoft Windows |
| Graze Counter GM | casual game, action game | Bikkuri Software | Microsoft Windows, Xbox Series X and Series S |
| Greak: Memories of Azur | — | — | Microsoft Windows, Nintendo 3DS, Xbox Series X and Series S |
| Great Battles: Battle of Tobruk | real-time strategy | Nival | Microsoft Windows |
| Great Britain Ltd | — | — | ZX Spectrum |
| Great Football | American football video game | Q122741 | Sega Mega-Tech |
| Great Sluggers | baseball video game | Namco | arcade video game machine |
| Greece Defense TD | tower defense | — | Microsoft Windows, macOS |
| Greedland | adventure video game, action game, action-adventure game | — | Microsoft Windows |
| Greedy Guns | — | — | Microsoft Windows, macOS, Linux |
| Green | — | Bart Bonte | Android |
| Green Green 2: Koi no Special Summer | eroge, visual novel | GROOVER | Microsoft Windows |
| Green Green 3 ~Hello, Good-bye~ | visual novel | — | Microsoft Windows |
| Green Hell VR | — | — | Microsoft Windows |
| GREEN The Life Algorithm | adventure video game, action game, action-adventure game, strategy video game | — | Microsoft Windows |
| GreenTech+ Legacy Edition | casual game, action game, strategy video game | Vertigo Gaming | Microsoft Windows |
| Gregor Hills Haunted Hospital | casual game, adventure video game | Anamik Majumdar | Microsoft Windows, Linux |
| Gremlins | action game | Atari | Atari 2600 |
| Gremlins 2: The New Batch | puzzle video game, platform game | Sunsoft | DOS, Nintendo Entertainment System, Amstrad CPC |
| Gremlins: The Adventure | interactive fiction | — | ZX Spectrum, Amstrad CPC, Commodore 64 |
| Grey Skies: A War of the Worlds Story | adventure video game, action game, action-adventure game | — | Microsoft Windows |
| Gridders | — | — | 3DO |
| Griddlers Victorian Picnic | — | Big Up Studio | Microsoft Windows, macOS |
| Gridrunner | — | Jeff Minter | Commodore VIC-20 |
| Griefer | — | — | Microsoft Windows |
| Grim Fandango Remastered | adventure video game | — | Microsoft Windows, Linux |
| Grim Nights | strategy video game | — | Microsoft Windows |
| Grimace Run | adventure video game, strategy video game | — | Microsoft Windows |
| Grimace's Birthday | platform game | — | web browser |
| Gripper's Adventure | adventure video game, strategy video game | — | Microsoft Windows, macOS |
| Grom: Terror in Tibet | action-adventure game | — | Microsoft Windows |
| Groove Coaster: Wai Wai Party!!!! | — | — | — |
| Groove Jigoku V | — | — | — |
| Grounds of Glory | — | — | Microsoft Windows |
| Growing Up | life simulation game | Vile Monarch | Microsoft Windows, macOS |
| Growlanser Wayfarer of Time | post-apocalyptic video game, role-playing video game | Career Soft | — |
| Growlanser: Heritage of War | tactical role-playing game | Career Soft | — |
| Grudge Warriors | — | — | — |
| Guacamelee! 2 | Metroidvania, action game | Drinkbox Studios | Microsoft Windows |
| Guardian Force - Saturn Tribute | arcade, shooter game | — | Microsoft Windows |
| Guardian Recall | tactical role-playing game | — | Microsoft Windows |
| Guardians of Greenheart | adventure video game, role-playing video game | — | Microsoft Windows |
| Guess who ? | casual game, action game | — | Microsoft Windows |
| Guild Wars 2 | massively multiplayer online role-playing game, LGBT-themed video game, video game with LGBT character | ArenaNet | Microsoft Windows, macOS |
| Guild Wars Nightfall | action role-playing game, role-playing video game, massively multiplayer online game | ArenaNet | Microsoft Windows |
| Guildmaster: Gratuitous Subtitle | strategy video game | — | Microsoft Windows, Linux |
| Guilty Crown: Lost Christmas | adventure video game | — | Microsoft Windows |
| Guilty Gear Isuka | fighting game | Arc System Works | Microsoft Windows |
| Guilty Gear Petit | fighting game | Arc System Works | WonderSwan |
| Guitar Hero: Aerosmith | music video game | Neversoft | PlayStation 3, Microsoft Windows, macOS, Wii |
| Guitar Hero: On Tour | rhythm game | Q1947354 | Nintendo DS |
| Guitar Hero: Van Halen | music video game | Neversoft | PlayStation 3, Wii |
| Gum+ | — | — | Xbox Series X and Series S |
| Gumshoe | — | — | Commodore 64 |
| Gun Law | — | — | Commodore 16, Atari 8-bit family |
| Gunbrella | action-adventure game, platform game | doinksoft | Microsoft Windows |
| Gunbrick: Reloaded | — | Nitrome | Microsoft Windows, macOS |
| Gundam Battle Royale | action game | Artdink | PlayStation Portable |
| Gundam the 3D Battle | — | Artdink | Nintendo 3DS |
| Gundam Versus | — | — | — |
| Gundam: Battle Assault 2 | fighting game | Winning Entertainment Group | — |
| Gunfire Reborn | roguelite, first-person shooter | Duoyi Network | Microsoft Windows, Xbox Series X and Series S |
| GunForce II | shoot 'em up, science fiction video game | — | Microsoft Windows, arcade video game machine |
| Gungnir | tactical role-playing game | Sting | PlayStation Portable |
| Gunparade Orchestra: Ao no Shō | — | Alfa System | — |
| Gunpowder on The Teeth: Arcade | — | — | Microsoft Windows |
| Guns and Roses | — | — | Microsoft Windows |
| Guns And Waifus | — | Rosa Special Studio | Microsoft Windows |
| Guns, Gore and Cannoli 2 | shooter game | Crazy Monkey Studios | Microsoft Windows, macOS |
| Gunslugs | shoot 'em up, action game, run and gun | Orange Pixel | Microsoft Windows, macOS, Nintendo 3DS, Linux, Android |
| Gunslugs 2 | shoot 'em up, action game | Orange Pixel | Microsoft Windows, macOS, Nintendo 3DS, Linux |
| Gurgamoth | — | — | Microsoft Windows, macOS |
| Gutting Goblins! | casual game, action game | — | Microsoft Windows, Linux |
| Gyropod | — | Taskset | Commodore 64 |