| Arcade Video game |  Crude Buster | 1990 | Data East Corp. Japan |
| NEC PC-8801 Series disk | Crystal Dream II - Maou no Gen'ei | 1990 | Striker Japan |
| NEC PC-9801 Series 5.25in. disk | Crystal Dream II - Maou no Genei | 1990 | Striker Japan |
| Sharp X68000 Series 5.25in. disk | Crystal Tower | 1990 | Master Piece |
| Nintendo NES cart. |  Crystalis Model NES-GO-USA | 1990 | SNK Corp. of America CA, USA |
| Atari ST disk | Crystals of Arborea | 1990 | Silmarils France |
| Sinclair ZX Spectrum cass. | Cuban Mission | 1990 | Bolsoftware Communications Spain |
| Gamate cart. | Cube Up Model C1001 | 1990 | Bit Corp. |
| IBM PC DOS pack. | Cuber Sw | 1990 | Soleau Soft., Inc. |
| Arcade Video game |  Cuby Bop | 1990 | Hot-B Japan |
| Sharp X68000 Series 5.25in. disk | Cueb Runner Model GS-201 P | 1990 | SPS Japan |
| IBM PC DOS pack. |  Cunning Football Ver. 4.0 Sw | 1990 | Cunningham, Cass |
| Amstrad CPC cass. | Cup Football | 1990 | Cult |
| Sinclair ZX Spectrum cass. | Cup Manager | 1990 | GTI Soft. |
| Sinclair ZX Spectrum cass. | Current Contenders Cassette - As At 28-02-90 | 1990 | Lambourne Games |
| Sega Genesis cart. | Curse | 1990 | INTV Corp. |
| Commodore C64 disk | Curse of babylon | 1990 | Kyodai Soft. Marketing, Inc. |
| Sega Mega Drive cart. | Cutie Suzuki no Ringside Angel Model T-20033 | 1990 | Asmik Co., Ltd. Japan |
| NEC PC-Engine HuCARD | Cyber Core Model AI-02001 | 1990 | IGS Corp. Information Global Service |
| NEC TurboGrafx-16 cart. | Cyber Core Model TGX030030 | 1990 | NEC Home Electronics, Ltd. |
| NEC PC-Engine HuCARD | Cyber Knight Model TON90003 | 1990 | Tonkin House Japan |
| Sharp X1 Turbo type-in | Cyber Mission | 1990 | Dempa Shinbunsha Japan |
| Sega Mega-Tech cart. | Cyber Police E-SWAT - Enhanced Special Weapons and Tactics Model 38 | 1990 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Master System cart. | Cyber Police E-SWAT - The Ultimate Factor in the Battle Against Crime | 1990 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Amstrad CPC cass. | Cyber Police ESWAT | 1990 | Erbe Soft. Spain |
| Amstrad CPC cass. | Cyber Police ESWAT | 1990 | US Gold, Ltd. Birmingham, England 13442 |
| Amstrad CPC 464 disk | Cyber Police ESWAT P | 1990 | US Gold, Ltd. Birmingham, England 13442 |
| Sega Mega Drive cart. | Cyber Police ESWAT Model G-4029 | 1990 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Commodore Amiga 500 disk | Cyber World | 1990 | Magic Bytes Germany |
| SNK Neo-Geo MVS cart. | Cyber-Lip Model NGM-010 | 1990 | SNK Corp. Shin Nihon Kikaku Japan |
| Commodore C64 cart. | Cyberball | 1990 | Domark Group, Ltd. |
| Commodore Amiga 500 disk | Cyberball | 1990 | Domark Group, Ltd. |
| Sinclair ZX Spectrum cass. | Cyberball | 1990 | Domark Group, Ltd. |
| Amstrad CPC 464 disk | Cyberball | 1990 | Domark Group, Ltd. |
| Atari ST disk | Cyberball | 1990 | Domark Group, Ltd. |
| Sinclair ZX Spectrum cass. | Cyberball | 1990 | Erbe Soft. Spain |
| Sega Mega Drive cart. | CyberBall - Football in the 21st Century Model G-4027 | 1990 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Genesis cart. | CyberBall Model 1109 | 1990 | SEGA of America, Inc. San Francisco, CA, USA |
| Amstrad CPC cass. | Cyberball Model 454-5 | 1990 | Domark Group, Ltd. |
| Amstrad CPC cass. | Cyberball Model AM 598 | 1990 | Erbe Soft. Spain |
