| Thomson MO5 cart. |  Controle Aerien Model 4TF031 | 1984 | VIFI-Nathan Vifi International |
| Tangerine Oric 1 type-in | Conveyor Belt | 1984 | Argus Specialist Publications |
| Commodore C64 type-in | Convoy | 1984 | Melbourne House UK 015901 |
| Commodore C64 type-in | Convoy | 1984 | Century Communications |
| Hitachi MB-6890 (BM-LIII) type-in | Cook | 1984 | Dempa Shinbunsha Japan |
| Commodore C64 type-in | Cops and Robbers | 1984 | Grisewood & Dempsey |
| Dragon cass. | Copta Snatch | 1984 | Blaby Computer Games |
| Sinclair ZX Spectrum cass. | Copter | 1984 | Omega Soft. |
| Acorn BBC/Electron cass. | Copter Capers | 1984 | A&F Soft. |
| Dragon cass. | Copter Patrol | 1984 | J.Morrison Micros |
| Commodore VIC-20 type-in | Copter Run | 1984 | Paradox Group |
| Thomson MO5 cass. | Coq Inn | 1984 | VIFI-Nathan Vifi International |
| Acorn BBC/Electron cass. | Cornish Riviera | 1984 | Dee-Kay Systems |
| Sinclair ZX Spectrum cass. | Cornish Riviera | 1984 | Dee-Kay Systems |
| NEC PC-8801 Series disk | Coron Model 2013501 | 1984 | ASCII Corp. Japan |
| Acorn Electron cass. | Corporate Climber | 1984 | Dynabyte |
| NEC PC-8801 Series disk | Corridor | 1984 | KOEI Co., Ltd. Japan |
| Fujitsu FM-7 cass. | Corridor Model FUKN13036 | 1984 | KOEI Co., Ltd. Japan |
| Fujitsu FM-7 3.5in. disk | Corridor Model FUKN13038 | 1984 | KOEI Co., Ltd. Japan |
| NEC PC-8001 cass. | Corridor Model NEKN11042 | 1984 | KOEI Co., Ltd. Japan |
| NEC PC-6001mkII cass. | Corridor Model NEKN19008 | 1984 | KOEI Co., Ltd. Japan |
| Sinclair ZX Spectrum cass. | Corruption | 1984 | Omega Soft. |
| Sinclair ZX Spectrum type-in | Corsaire | 1984 | Shift Editions Paris, France |
| Tangerine Oric 1 type-in | Corsaires | 1984 | Shift Editions Paris, France |
| RCA COSMAC VIP type-in | COSMAC Conquest | 1984 | Association of Computer Experimenters |
| Sinclair ZX Spectrum type-in | Cosmazoigs | 1984 | Business Press International, Ltd. |
| Handheld game | Cosmic 3000 Fire Away Model 60-2183 | 1984 | Tandy Corp. |
| Commodore C64 type-in | Cosmic Chess | 1984 | Sunshine Books, Ltd. |
| Commodore C64 type-in | Cosmic Combat | 1984 | Compute! Publications, Inc. |
| Atari 2600 cart. | Cosmic Commuter Model AG-038 | 1984 | Activision, Inc. Mountain View, CA, USA 47875 |
| Acorn BBC/Electron cass. | Cosmic Cruiser | 1984 | Imagine Creative Technology Group Ltd. 011973 |
| Dragon cass. | Cosmic Cruiser | 1984 | Imagine Creative Technology Group Ltd. 011973 |
| Sharp MZ-80K type-in | Cosmic Cruiser II | 1984 | Kohgaku-Sha Co.,Ltd. |
| Sinclair ZX Spectrum cass. | Cosmic Cruiser Model 001203 | 1984 | Imagine Creative Technology Group Ltd. 011973 |
| Commodore C64 cass. | Cosmic Cruiser Model 021201 | 1984 | Imagine Creative Technology Group Ltd. 011973 |
| Dragon cass. | Cosmic Crusader | 1984 | Blaby Computer Games |
| Commodore C64 type-in | Cosmic Dodge | 1984 | Horwood, Ellis |
| Memotech MTX cass. | Cosmic Raiders | 1984 | Continental Soft. |
| MSX cart. | Cosmo | 1984 | ASCII Corp. Japan |
| NEC PC-8801 Series type-in | Cosmo Death Valley | 1984 | Dempa Shinbunsha Japan |
