| PC/MS-Windows pack. |  Goonzu | 2004 | nDoors Korea |
| PC/MS-Windows CD | Gorky Zero - Beyond Honor | 2004 | JoWooD Productions AG |
| Slot Machine | Got Wheel | 2004 | IGT International Game Technologies Reno, NV, USA |
| PC/MS-Windows CD | Gotcha! | 2004 | Gathering of Developers, Inc. |
| Sony PlayStation 2 disc | Gradius V Model SLPM-62462 | 2004 | Konami Corp. Japan |
| Kiddie Ride | Grand Canyon | 2004 | Cogan Italy |
| Slot Machine | Grand Prize Keno | 2004 | IGT International Game Technologies Reno, NV, USA |
| Nintendo GBA cart. | Grand Theft Auto Advance Model AGB-BGTE-USA | 2004 | Rockstar Games |
| Nintendo GBA cart. | Grand Theft Auto Advance Model AGB-BGTP | 2004 | Rockstar Games |
| Slot Machine | Grande Ball of Cash | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Gravy Grubstake | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Great Plains | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Great Scot! | 2004 | WMS Gaming, Inc. Chicago, IL, USA |
| PC/MS-Windows CD | Ground Control II - Operation Exodus | 2004 | Vivendi Universal Games, Inc. |
| Sony PlayStation 2 disc | GT Racers Model SLES-52602 | 2004 | Liquid Games |
| Sony PlayStation 2 disc | GT-R 400 Model SLES-52045 | 2004 | Midas Int. Ent. |
| Sammy Atomiswave cart. | Guilty Gear Isuka | 2004 | Sammy Corp. Japan |
| Konami System 573 disc+cart. | GuitarFreaks 11thMix | 2004 | Konami Corp. Japan |
| Sony PlayStation 2 disc | Gunbird 1&2 Model SLPM-62469 | 2004 | Atlus Co., Ltd. Japan |
| PC/MS-Windows DVD | Gurumin Model NW10107470 | 2004 | Falcom Nihon Falcom Corp. Japan |
| Nintendo GBA cart. | Gyakuten Saiban 3 Model AGB-A3JJ-JPN | 2004 | Capcom Co., Ltd. Japan |
| Slot Machine | Habanero | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Habanero 7s | 2004 | IGT International Game Technologies Reno, NV, USA |
| Nintendo GBA cart. | Hagane no Renkinjutsushi - FullMetal Alchemist - Meisou no Rondo Model AGB-BHRJ-JPN | 2004 | Bandai Co., Ltd. Japan |
| Nintendo GBA cart. | Hagane no Renkinjutsushi - FullMetal Alchemist - Omoide no Sonata Model AGB-BH2J-JPN | 2004 | Bandai Co., Ltd. Japan |
| PC/MS-Windows CD | Hakui no Gohoushi | 2004 | U-Me Soft. Japan |
| PC/MS-Windows pack. | Half-Life - Source Model 280 | 2004 | Steam Valve Corp. |
| PC/MS-Windows CD | Half-Life 2 | 2004 | Vivendi Universal Games, Inc. |
| PC/MS-Windows CD | Half-Life 2 - Deathmatch | 2004 | Valve Corp. |
| PC/MS-Windows pack. | Half-Life 2 - Deathmatch Model 320 | 2004 | Steam Valve Corp. |
| PC/MS-Windows pack. | Half-Life 2 Model 220 | 2004 | Steam Valve Corp. |
| Nintendo GBA cart. | Hamtaro - Ham-Ham Games Model AGB-B85E-USA | 2004 | Nintendo of America, Inc. USA 45496 |
| Nintendo GBA cart. |  Hamtaro - Ham-Ham Games Model AGB-B85P-EUR | 2004 | Nintendo Co., Ltd. Japan |
| Pachislot | Hana Roman 25-Pai | 2004 | Taiyo Co., Ltd. Japan |
| Pachislot | Hana Roman 30-Pai | 2004 | Taiyo Co., Ltd. Japan |
| Nintendo GBA cart. | Hanabi Hyakkei Advance Model AGB-BHAJ-JPN | 2004 | Aruze Corp. Japan |
| Arcade Video game | Happy 6-in-1 | 2004 | IGS Co., Ltd. International Game System |
| Slot Machine | Happy Drink Model WMH-209HD | 2004 | Paokai Electronic Enterprise Co., Ltd. Taiwan |
| Pachislot | Happy Malibu | 2004 | Pioneer Co., Ltd. Japan |
| Medal video game | Happy Shock 2 | 2004 | Unknown Korea |
