| Slot Machine |  Dollar Daze | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Dollar Lama | 2004 | IGT International Game Technologies Reno, NV, USA |
| Medal video game | Dolphin | 2004 | Unknown Korea |
| Slot Machine | Dolphin Bay | 2004 | WMS Gaming, Inc. Chicago, IL, USA |
| Acorn BBC Micro B disk | Dominion Hb | 2004 | Cronosoft |
| Pachislot | Don Don Hanahana | 2004 | Pioneer Co., Ltd. Japan |
| Medal video game | Dona Dona | 2004 | Unknown Korea |
| Medal video game | Dona Dona III | 2004 | Unknown Korea |
| Nintendo GBA cart. | Donchan Puzzle Hanabi de Dohn Advance Model AGB-BDAJ-JPN | 2004 | Aruze Corp. Japan |
| Arcade Video game | Donkey Kong + Donkey Kong Jr. + Mario Bros. | 2004 | NAMCO America, Inc. |
| Nintendo GameCube disc | Donkey Kong - Jungle Beat | 2004 | Nintendo Co., Ltd. Japan |
| Nintendo GBA cart. | Donkey Kong Country 2 Model AGB-BD2E-USA | 2004 | Nintendo of America, Inc. USA 45496 |
| Nintendo GBA cart. | Donkey Kong Country 2 Model AGB-BD2P | 2004 | Nintendo Co., Ltd. Japan |
| Nintendo GBA cart. |  Donkey Kong Country 2 Model AGB-BD2U-AUS | 2004 | Nintendo Co., Ltd. Japan |
| Nintendo GBA cart. | Donkey Kong NES Classic + 2 Model AGB-FDKP | 2004 | Nintendo Co., Ltd. Japan |
| Nintendo GameCube disc | Donkey Konga 2 - Hit Song Parade | 2004 | Nintendo Co., Ltd. Japan |
| Nintendo GBA cart. | Dora the Explorer - Super Star Adventures! Model AGB-BDOE-USA | 2004 | Global Star Soft. |
| Nintendo GBA cart. | Dora the Explorer - Super Star Adventures! Model AGB-BDOP | 2004 | Global Star Soft. |
| Redemption mechanical game | Doraemon no Unten Dai Suki | 2004 | Sammy Corp. Japan |
| Pachislot | Doraslot Zenigata | 2004 | Heiwa Japan |
| Pachislot | Double Bomber | 2004 | Daido |
| Slot Machine | Double Crystal Sevens | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Double Diamond Extra | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Double Diamond Stars | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Double Diamond Super Deluxe | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Double Dollars Red White & Blue Stars | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Double Down Draw | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Double Down Stud Triple Play Five Play Ten Play | 2004 | IGT International Game Technologies Reno, NV, USA |
| Nintendo GBA cart. | Double Dragon Advance Model AGB-BDDJ-JPN | 2004 | Atlus Co., Ltd. Japan |
| Slot Machine | Double Horseshoes | 2004 | WMS Gaming, Inc. Chicago, IL, USA |
| Medal video game | Double Joker Combo Mission 100 | 2004 | Total Amusement Korea |
| Medal video game | Double Joker Combo Mission 200 | 2004 | Total Amusement Korea |
| Medal video game | Double Score IV+ | 2004 | Trucom |
| Slot Machine | Double Sizzling 7's 3-Reel | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Double Sizzling 7's 5-Reel | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Double Stampede Deluxe | 2004 | WMS Gaming, Inc. Chicago, IL, USA |
| Slot Machine | Double the Bank | 2004 | WMS Gaming, Inc. Chicago, IL, USA |
| Pachinko | Double Wing | 2004 | Heiwa Japan |
| Nintendo GBA cart. | Doubutsu-jima no Chobigurumi 2 - Tama-chan Monogatari Model AGB-BDCJ-JPN | 2004 | Rocket Science Games |
| Slot Machine | Dough a Deer | 2004 | IGT International Game Technologies Reno, NV, USA |
