| Sinclair ZX Spectrum cass. |  Castle of the Skull Lord | 1984 | Samurai Soft. |
| Sinclair ZX Spectrum cass. | Castle Quest | 1984 | Scorpio Gamesworld |
| Sinclair ZX Spectrum cass. | Castle Quest | 1984 | Wildest Dreams |
| Sinclair ZX Spectrum cass. | Catastrophes Model 0017 | 1984 | Novotrade Rt. Hungary |
| Sinclair ZX Spectrum cass. | Catwalk | 1984 | POWER Soft. Paris, France |
| Sinclair ZX Spectrum cass. | Cavelon | 1984 | Ocean Soft., Ltd. 13156 |
| Sinclair ZX Spectrum cass. | Chambers of Horrors | 1984 | Omega Soft. |
| Sinclair ZX Spectrum cass. | Changeling | 1984 | CCS Cases Computer Simulations, Ltd. London, England |
| Sinclair ZX Spectrum cass. | Chess Master | 1984 | Serin Soft. |
| Sinclair ZX Spectrum cass. | Chinese Juggler | 1984 | Ocean Soft., Ltd. 13156 |
| Sinclair ZX Spectrum cass. | Chomp! | 1984 | Flowchart |
| Sinclair ZX Spectrum cass. | Chuckie Egg | 1984 | A&F Soft. |
| Sinclair ZX Spectrum cass. |  Chuckie Egg | 1984 | Pick & Choose, Ltd. |
| Sinclair ZX Spectrum cass. | City Defence | 1984 | Hansesoft GmbH Germamy |
| Sinclair ZX Spectrum cass. | Cityfighter Model CS001 | 1984 | Choice Soft. |
| Sinclair ZX Spectrum cass. | Clerky | 1984 | Unique |
| Sinclair ZX Spectrum cass. | Code-Woord | 1984 | Wolters Soft. |
| Sinclair ZX Spectrum cass. | Codebook Caper | 1984 | Scorpio Gamesworld |
| Sinclair ZX Spectrum cass. | Codename Mat II Model 011-6 | 1984 | Domark Group, Ltd. |
| Sinclair ZX Spectrum cass. | Codename MAT Model QTC 725 | 1984 | Micromega |
| Sinclair ZX Spectrum cass. | Colditz Model PA012 | 1984 | Phipps Associates |
| Sinclair ZX Spectrum cass. | Commando | 1984 | Loriciels France |
| Sinclair ZX Spectrum cass. | Commando | 1984 | Pocket Money Soft. |
| Sinclair ZX Spectrum cass. | Concon issue 1 | 1984 | Sift S.A. |
| Sinclair ZX Spectrum cass. | Concon issue 2 | 1984 | Sift S.A. |
| Sinclair ZX Spectrum cass. | Concon issue 3 | 1984 | Sift S.A. |
| Sinclair ZX Spectrum cass. | Concon issue 4 | 1984 | Sift S.A. |
| Sinclair ZX Spectrum cass. | Concon issue 5 | 1984 | Sift S.A. |
| Sinclair ZX Spectrum cass. | Concon issue 6 | 1984 | Sift S.A. |
| Sinclair ZX Spectrum cass. | Concon issue 7 | 1984 | Sift S.A. |
| Sinclair ZX Spectrum cass. | Concon issue 8 | 1984 | Sift S.A. |
| Sinclair ZX Spectrum cass. | Connect 4 Model AT 308 | 1984 | Atlantis Soft. |
| Sinclair ZX Spectrum cass. | Conquerors of Space | 1984 | Duncan Games |
| Sinclair ZX Spectrum cass. | Conquest Model SP01-02 | 1984 | Cheetahsoft |
| Sinclair ZX Spectrum cass. | Contract Bridge | 1984 | Highlight Soft. |
| Sinclair ZX Spectrum cass. | Copter | 1984 | Omega Soft. |
| Sinclair ZX Spectrum cass. | Cornish Riviera | 1984 | Dee-Kay Systems |
| Sinclair ZX Spectrum cass. | Corruption | 1984 | Omega Soft. |
| Sinclair ZX Spectrum cass. | Cosmic Cruiser Model 001203 | 1984 | Imagine Creative Technology Group Ltd. 011973 |
| Sinclair ZX Spectrum cass. | Count with Oliver | 1984 | Mirrorsoft, Ltd. England |
