| Redemption mechanical game |  Capsule Factory | 2003 | NAMCO, Ltd. Japan |
| Nintendo GBA cart. |  Captain Harlock | 2003 | Otaboo |
| Fruit Machine | Card Shark Club | 2003 | Vivid Gaming England |
| Nintendo GBA cart. | Cardcaptor Sakura - Sakura Card de Mini Game Model AGB-BK3J-JPN | 2003 | TDK Core |
| Slot Machine | Caribic | 2003 | Mega |
| Slot Machine | Carnival of Mystery | 2003 | IGT International Game Technologies Reno, NV, USA |
| Video Slot Machine | Carnival of Mystery Video Reel Touch | 2003 | IGT International Game Technologies Reno, NV, USA |
| Kiddie Ride | Carousel - The Kiddy Ride | 2003 | LAI Games Leisure & Allied Industries Singapore |
| Video Slot Machine | Carriage Bonus 2003 | 2003 | Unknown |
| LeapFrog Leapster cart. | Cars - Supercharged | 2003 | LeapFrog |
| Nintendo GBA cart. | Cartoon Network Speedway Model AGB-ANRE-USA | 2003 | Majesco Sales, Inc. |
| Slot Machine | Cash Cow | 2003 | Rocket Gaming Systems |
| Slot Machine | Cash Crate Bay | 2003 | Konami Gaming, Inc. Las Vegas, NV, USA |
| Slot Machine | Cash Crossing | 2003 | Konami Gaming, Inc. Las Vegas, NV, USA |
| Slot Machine | Cash Eruption | 2003 | GTech Corp. Providence, RI, USA |
| Slot Machine | Cash Inferno | 2003 | Konami Gaming, Inc. Las Vegas, NV, USA |
| Slot Machine | Cashball | 2003 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Cashsquatch | 2003 | GTech Corp. Providence, RI, USA |
| Medal video game | Casino King V Plus | 2003 | Limenko, Ltd. Seoul, Korea |
| Medal video game | Casino Lupin | 2003 | Unknown Korea |
| Slot Machine | Casino Win | 2003 | Bally Wulff |
| Sinclair ZX Spectrum cass. | Castillo Maldito Hb | 2003 | Beyker Soft |
| Atari XE cart. | Castle Crisis Hb | 2003 | AtariAge |
| Nintendo GBA cart. | Castlevania - Akatsuki no Minuet Model AGB-A2CJ-JPN | 2003 | Konami Corp. Japan |
| Nintendo GBA cart. | Castlevania - Aria of Sorrow Model AGB-A2CE-USA | 2003 | Konami of America CA, USA |
| Nintendo GBA cart. | Castlevania - Aria of Sorrow Model AGB-A2CP | 2003 | Konami Corp. Japan |
| Nintendo GameCube disc | Castleween | 2003 | Wanadoo Edition |
| Slot Machine | Catch A Falling Star | 2003 | IGT International Game Technologies Reno, NV, USA |
| Sky Gamestar game | Caterpillar Crunch | 2003 | Sky Games |
| Slot Machine | Cats and Dogs - Spin 'n' Hold | 2003 | IGT International Game Technologies Reno, NV, USA |
| IBM PC/AT DOS pack. | Cats and Mouse | 2003 | Dunfield, Dave |
| Medal video game | Cellica | 2003 | Unknown Korea |
| Seta Aleck64 cart. | Chameleon RX-1 | 2003 | Digital Sunnil |
| PC/MS-Windows CD | Championship Manager Season 03/04 | 2003 | Eidos Interactive |
| Dedicated Console | Champiyon Pinball | 2003 | SSD Co., Ltd. |
| PC/MS-Windows CD | Chaos Legion | 2003 | Capcom Ent., Inc. USA 13388 |
| Pachislot | Charlie's Angels | 2003 | Rodeo Corp. Japan |
| Nintendo GameCube disc | Charlie's Angels | 2003 | Ubisoft Ent. Montreuil sous Bois, France |
| PC/MS-Windows CD | Chaser | 2003 | BigBen Interactive |
| Sony PlayStation CD |  Checkmate II Model SLES-04053 | 2003 | Phoenix Games |
