| PC/MS-Windows CD |  American Conquest - Fight Back | 2003 | CDV Soft. Ent. USA, Inc. |
| Slot Machine | American Eagle Model CN9411-009 | 2003 | Dragon Co., Ltd. |
| Slot Machine | American Eagle Model MB91C1 | 2003 | Dragon Co., Ltd. |
| Nintendo GBA cart. | American Idol Model AGB-BIDE-USA | 2003 | Codemasters Soft. Co., Ltd., The 015026 |
| Sony PlayStation CD |  American Pool Model SLES-04037 | 2003 | Midas Int. Ent. |
| Sony PlayStation CD | American Pool Model SLUS-01488 | 2003 | Mud Duck Productions |
| Slot Machine | American Reels Mechanical | 2003 | WMS Gaming, Inc. Chicago, IL, USA |
| Video Slot Machine | American Reels Video | 2003 | WMS Gaming, Inc. Chicago, IL, USA |
| Microsoft XBOX disc | AMF Bowling 2004 | 2003 | Unknown |
| Microsoft XBOX disc | Amped 2 | 2003 | Unknown |
| Slot Machine | Anastasia | 2003 | IGT International Game Technologies Reno, NV, USA |
| PC/MS-Windows CD | Anata no Osanazuma 18 | 2003 | Trabulance |
| Nintendo GBA cart. | Angel Collection - Mezase! Gakuen no Fashion Leader Model AGB-AFNJ-JPN | 2003 | MTO, Inc. Japan |
| Microsoft XBOX disc | Angelic Concert | 2003 | Unknown |
| Arcade Video game | Angler's Quest | 2003 | 3001 AD FL, USA |
| Video Slot Machine | Animal Bonus | 2003 | Amcoe, Inc. USA |
| Video Slot Machine | Animal Bonus Nudge | 2003 | Amcoe, Inc. USA |
| Sony PlayStation CD | Animal Football Model SLES-04071 | 2003 | Phoenix Games |
| Sony PlayStation CD | Animal Snap - Rescue Them 2 by 2 Model SLES-04036 | 2003 | Ignition Ent., Ltd. |
| Video Slot Machine | Animal Treasure Hunt | 2003 | Amcoe, Inc. USA |
| Tomy Evio cart. | Anime Mix 1 Model eM3 | 2003 | Tomy |
| Tomy Evio cart. | Anime Mix 2 Model eM11 | 2003 | Tomy |
| Tomy Evio cart. | Anime Special - Pocket Monsters Model eM10 | 2003 | Tomy |
| PC/MS-Windows CD | Anitong - Kevin | 2003 | Eumyoun Korea |
| PC/MS-Windows CD | Anitong - Lance | 2003 | Eumyoun Korea |
| Coleco Adam disk | ANN Disk - 2003-01 - E.O.S. Files | 2003 | ADAM News Network |
| Coleco Adam disk | ANN Disk - 2003-04 | 2003 | ADAM News Network |
| Coleco Adam disk | ANN Disk - 2003-09 - E.O.S. Files | 2003 | ADAM News Network |
| Coleco Adam disk | ANN Disk - 2003-10 - Hacker's Guide to ADAM | 2003 | ADAM News Network |
| Coleco Adam disk | ANN Disk - 2003-12 - X-Mas Card | 2003 | ADAM News Network |
| Sony PlayStation 2 disc | Anubis - Zone of the Enders Model SLPM-65236 | 2003 | Konami Computer Ent. Japan |
| Slot Machine | Anything's Wild Poker | 2003 | IGT International Game Technologies Reno, NV, USA |
| Sony PlayStation CD | Ao Zora To Nakama-Tachi - Yume No Bouken Model SLPS-03564 | 2003 | MTO, Inc. Japan |
| Microsoft XBOX disc | Apex | 2003 | Unknown |
| PC/MS-Windows CD | Apocalyptica | 2003 | Konami of America CA, USA |
| Slot Machine | Aqua Action | 2003 | Stargames, Ltd. Australia |
| Pachislot | Aqua Marine | 2003 | Daito-Giken, Inc. Japan |
| Microsoft XBOX disc | Aquaman - Battle for Atlantis | 2003 | Unknown |
| Nintendo GameCube disc | Aquaman - Battle for Atlantis Model DOL-GAQE-USA | 2003 | TDK Mediactive, Inc. |
| PC/MS-Windows CD | AquaNox 2 - Revelation | 2003 | JoWooD Productions AG |
