| Sinclair ZX Spectrum cass. |  Cauldron I & II Model HT058 | 1990 | Hi-Tec Soft. |
| Commodore C64 cass. | Cauldron I & II Model HT059 | 1990 | Hi-Tec Soft. |
| Amstrad CPC type-in |  Cave | 1990 | DMV Daten und Medien Verlag Eschwege, Germany |
| Commodore C64 disk | Cave 112 | 1990 | Markt & Technik |
| Commodore C64 type-in | Caveman | 1990 | Compute! Publications, Inc. |
| Nintendo NES cart. | Caveman Games Model NES-UQ-USA | 1990 | Data East USA, Inc. |
| Sinclair ZX Spectrum cass. | Cavemania Model AT 363 | 1990 | Atlantis Soft. |
| Fujitsu FM-7 type-in | Caver | 1990 | Dempa Shinbunsha Japan |
| Atari 400/800 cass. | Cavernia | 1990 | Zeppelin Games |
| Atari 400/800 disk | Cavernia | 1990 | Zeppelin Games |
| IBM PC/AT DOS pack. | Caverns of Kroz II Sw | 1990 | Softdisk Publishing |
| IBM PC/AT DOS pack. | Caves of Thor Sw | 1990 | Apogee Soft. |
| Sinclair ZX Spectrum cass. | Cecco's Collection | 1990 | Hewson Consultants, Ltd. England 012635 |
| IBM PC 3.5in. disk | Cefalus | 1990 | Ediciones Manali, S.A. |
| Commodore C64 disk | Centauri Alliance Model 13930 | 1990 | Broderbund Soft., Inc. CA, USA 47956 |
| Slot Machine | Center | 1990 | Mega |
| Sinclair ZX Spectrum cass. | Centipod | 1990 | Challenge Soft. |
| Homelab soft. | Centrum | 1990 | Vakoda Soft. |
| IBM PC 5.25in. disk | Centurion - Defender of Rome Model 1798 | 1990 | Electronic Arts CA, USA 14633 |
| IBM PC 3.5in. disk | Centurion - Defender of Rome Model 3405 | 1990 | Electronic Arts CA, USA 14633 |
| Commodore Amiga 500 disk | Century | 1990 | Software 2000, Inc. |
| Sharp MZ-2500 type-in | Chack no Koubou | 1990 | Dempa Shinbunsha Japan |
| Amstrad CPC cass. | Chain Reaction Model 400354 | 1990 | Encore 012189 |
| Nintendo NES cart. | Challenge of the Dragon | 1990 | Color Dreams, Inc. Brea, CA, USA |
| Nintendo NES cart. | Challenge of the Dragon Model TC-011 | 1990 | Sachen Thin Chen co. Taiwan |
| Sharp X68000 Series 5.25in. disk | Chami 68K | 1990 | M.HIJK |
| NEC PC-Engine HuCARD | Champion Wrestler Model TP02014 | 1990 | Taito Corp. Japan |
| Amstrad CPC cass. | Championship Water-Ski Challenge | 1990 | Players Premier |
| Pachinko | Chance Hole 10A-M | 1990 | Okumura Japan |
| Amstrad CPC type-in | Change | 1990 | DMV Daten und Medien Verlag Eschwege, Germany |
| NEC PC-9801 Series type-in | Change of Direction | 1990 | Dempa Shinbunsha Japan |
| NEC PC-8801mkIISR type-in | Chaos | 1990 | Dempa Shinbunsha Japan |
| Sega Master System cart. | Chapolim x Dracula - Um Duelo Assustador Model 023430 | 1990 | Tec Toy Industria de Brinquedos S.A. Brazil |
| Apple II 5.25 disk | Charlie Brown's 1, 2, 3's | 1990 | Queue, Inc. |
| IBM PC DOS pack. | Chase Sw | 1990 | Wizard Games of Scotland, Ltd. |
| Atari ST disk | Chase H.Q. II | 1990 | Ocean Soft., Ltd. 13156 |
| Commodore C64 cart. | Chase H.Q. II - Special Criminal Investigation | 1990 | Ocean Soft., Ltd. 13156 |
| Commodore Amiga 500 disk | Chase H.Q. II - Special Criminal Investigation | 1990 | Ocean Soft., Ltd. 13156 |
| Sinclair ZX Spectrum+3 disk |  Chase H.Q. II - Special Criminal Investigation | 1990 | Erbe Soft. Spain |
| Sinclair ZX Spectrum+3 disk | Chase H.Q. II - Special Criminal Investigation | 1990 | Ocean Soft., Ltd. 13156 |
