| Slot Machine |  Deep Sea 7's | 2004 | Konami Gaming, Inc. Las Vegas, NV, USA |
| Nintendo GameCube disc |  Def Jam - Fight for NY Model DOL-GNWP-NOE | 2004 | Electronic Arts CA, USA 14633 |
| TRS-80 MC-10 cass. | Defend | 2004 | Perosi, Charles |
| Nintendo GBA cart. | Defender of the Crown Model AGB-ADHP | 2004 | Zoo Digital Publishing |
| Slot Machine | Deja Vu Diamonds | 2004 | WMS Gaming, Inc. Chicago, IL, USA |
| Pachislot | Dekadan | 2004 | Net Corp. Japan |
| PC/MS-Windows CD | Delta Force - Black Hawk Down - Team Sabre | 2004 | NovaLogic |
| Dedicated Console | Deluxe TV Poker - Texas Hold'em, Blackjack & Video Poke | 2004 | Senario |
| Soccer Table | Deluxe World Champion | 2004 | Garlando Italy |
| TRS-80 MC-10 cass. | Demon Attack | 2004 | Perosi, Charles |
| PC/MS-Windows CD | Demon Stone | 2004 | Atari Interactive, Inc. |
| Nintendo GBA cart. | Densetsu no Stafy 3 Model AGB-B3DJ-JPN | 2004 | Nintendo Co., Ltd. Japan |
| Slot Machine | Denver Duck Slots | 2004 | IGT International Game Technologies Reno, NV, USA |
| VTECH V.Smile cart. | Der Koenig der Loewen - Simbas grosses Abenteuer | 2004 | VTECH Video Technology, Ltd. |
| Pachislot | Derby Rush | 2004 | Daiichi Denshi |
| Slot Machine | Desperado Bucks | 2004 | Magic Dreams |
| Takara e-Kara GK series cart. | Detective Conan Model GK-1 | 2004 | Takara Co., Ltd. Japan |
| Adobe Shockwave game | Deus Ex Reloaded | 2004 | Necromanthus |
| Fruit Machine | Devil of a Deal | 2004 | Vivid Gaming England |
| Slot Machine | Devil Spin | 2004 | Dragon Co., Ltd. |
| Video Slot Machine | Diamond Eyes | 2004 | Aristocrat Leisure Industries Pty, Ltd. |
| Slot Machine | Diamond Ice | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Diamond Ridge | 2004 | WMS Gaming, Inc. Chicago, IL, USA |
| Slot Machine | Diamond Solitaire Deluxe | 2004 | Konami Gaming, Inc. Las Vegas, NV, USA |
| Slot Machine | Diamond White Ice | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Diamote Doble | 2004 | IGT International Game Technologies Reno, NV, USA |
| Medal video game | Dicerom | 2004 | NAMCO, Ltd. Japan |
| Bandai WonderSwan Color cart. | Dicing Knight. | 2004 | Qute Corp. Japan |
| Slot Machine | Dick Clark's New Year's Rockin' Eve | 2004 | IGT International Game Technologies Reno, NV, USA |
| Nintendo GBA cart. | Die Unglaublichen | 2004 | T-HQ, Inc. Toy HeadQuarters |
| Commodore C64 disk | Dig Dug 001 Hb | 2004 | Scserbin, Zoltan |
| Medal video game | Diggers' Gold 3 | 2004 | K1soft |
| Pachislot | Digi Flu$h | 2004 | Bellco Corp. Japan |
| Nintendo GBA cart. | DigiCommunication 2 - Datou! Black Gemagema Dan Model AGB-BDKJ-JPN | 2004 | Broccoli Japan |
| Pachislot | Digigum R-30 | 2004 | Bellco Corp. Japan |
| Pachislot | Digigum R | 2004 | Bellco Corp. Japan |
| Nintendo GameCube disc | Digimon Battle Chronicle | 2004 | Bandai Co., Ltd. Japan |
| Nintendo GBA cart. | Digimon Racing Model AGB-BDGE-USA | 2004 | Bandai America, Inc. 45557 |
| Nintendo GBA cart. | Digimon Racing Model AGB-BDGP | 2004 | Bandai Co., Ltd. Japan |
| Nintendo GBA cart. | Digimon Racing Model AGB-BDJJ-JPN | 2004 | Bandai Co., Ltd. Japan |
