| Sinclair ZX Spectrum cass. |  Soccer 6 | 1990 | Challenge Soft. |
| Sinclair ZX Spectrum cass. | Soccer Challenge Model AS 794 | 1990 | Alternative Soft., Ltd. |
| Sinclair ZX Spectrum cass. | Soccer Director | 1990 | GTI Soft. |
| Sinclair ZX Spectrum cass. | Solar Empire | 1990 | Players Premier |
| Sinclair ZX Spectrum cass. | Sonic Boom | 1990 | Activision, Inc. Menlo Park, CA, USA 47875 |
| Sinclair ZX Spectrum cass. | Sooty & Sweep Model AS 742 | 1990 | Alternative Soft., Ltd. |
| Sinclair ZX Spectrum cass. | Sooty's Fun with Numbers | 1990 | Friendly Learning |
| Sinclair ZX Spectrum cass. | Soviet | 1990 | Opera Soft. Spain |
| Sinclair ZX Spectrum cass. | Soviet Model SEC808 | 1990 | Opera Soft. Spain |
| Sinclair ZX Spectrum cass. | Space Harrier II | 1990 | Grandslam Ent., Ltd. |
| Sinclair ZX Spectrum cass. |  Space Harrier II Model LYLS 061 | 1990 | MCM Soft. Spain |
| Sinclair ZX Spectrum cass. | Space Rider Jet Pack Co. Model HT015 | 1990 | Hi-Tec Soft. |
| Sinclair ZX Spectrum cass. | Spaghetti Western Simulator Model S206 | 1990 | Zeppelin Games |
| Sinclair ZX Spectrum cass. |  Sports Collection 09: Super Hang-On | 1990 | Hit Squad, The UK 13156 |
| Sinclair ZX Spectrum cass. | Sports Collection 13: Match Day 2 | 1990 | Hit Squad, The UK 13156 |
| Sinclair ZX Spectrum cass. | Sports Collection 19: Pro Tennis Tour | 1990 | Hit Squad, The UK 13156 |
| Sinclair ZX Spectrum cass. | Spy vs Spy III - Arctic Antics Model HT028 | 1990 | Hi-Tec Soft. |
| Sinclair ZX Spectrum cass. | Stalker | 1990 | Zenobi Soft. |
| Sinclair ZX Spectrum cass. | Star Dragon | 1990 | Proxima Soft. Czech Republic |
| Sinclair ZX Spectrum cass. | Steel Eagle | 1990 | Players Premier |
| Sinclair ZX Spectrum cass. | Stir Crazy Featuring Bobo | 1990 | Infogrames Interactive, Inc. 329720 |
| Sinclair ZX Spectrum cass. | Stir Crazy Featuring Bobo | 1990 | Erbe Soft. Spain |
| Sinclair ZX Spectrum cass. | Street Fighter Model 544877 | 1990 | Kixx 013442 |
| Sinclair ZX Spectrum cass. | Strider II | 1990 | US Gold, Ltd. Birmingham, England 13442 |
| Sinclair ZX Spectrum cass. | SU issue 100: Double Hits 1 | 1990 | Sinclair User |
| Sinclair ZX Spectrum cass. | SU issue 101: Double Hits 2 | 1990 | Sinclair User |
| Sinclair ZX Spectrum cass. | SU issue 102: Double Hits 3 | 1990 | Sinclair User |
| Sinclair ZX Spectrum cass. | SU issue 103: Double Hits 4 | 1990 | Sinclair User |
| Sinclair ZX Spectrum cass. | SU issue 104: Double Hits 5 | 1990 | Sinclair User |
| Sinclair ZX Spectrum cass. | SU issue 105: Six of the Best 1 | 1990 | Sinclair User |
| Sinclair ZX Spectrum cass. | SU issue 106: Six of the Best 2 | 1990 | Sinclair User |
| Sinclair ZX Spectrum cass. | SU issue 94: Megatape 23 | 1990 | Sinclair User |
| Sinclair ZX Spectrum cass. | SU issue 95: Megatape 24 | 1990 | Sinclair User |
| Sinclair ZX Spectrum cass. | SU issue 96: Megatape 25 | 1990 | Sinclair User |
| Sinclair ZX Spectrum cass. | SU issue 98: Megatape 26 | 1990 | Sinclair User |
| Sinclair ZX Spectrum cass. | SU issue 99: Megatape 27 | 1990 | Sinclair User |
| Sinclair ZX Spectrum cass. | Subbuteo | 1990 | Electronic Zoo |
| Sinclair ZX Spectrum cass. | Subbuteo | 1990 | System 4 de Espana, S.A. Spain |
| Sinclair ZX Spectrum cass. | Super Cars | 1990 | Erbe Soft. Spain |
| Sinclair ZX Spectrum cass. | Super Cars Model 021513 | 1990 | Gremlin Graphics Soft., Ltd. 013658 |
