| Sinclair ZX Spectrum cass. |  Rallycross Simulator | 1990 | Codemasters Soft. Co., Ltd., The 015026 |
| Sinclair ZX Spectrum cass. | Raster Runner | 1990 | Mastertronic Plus UK 012967 |
| Sinclair ZX Spectrum cass. | Rescate en el Golfo Model SE1035 | 1990 | Opera Soft. Spain |
| Sinclair ZX Spectrum cass. | Revenge of Chaos | 1990 | Guild, The |
| Sinclair ZX Spectrum cass. | Rick Dangerous 2 Model 250022 | 1990 | Micro Style |
| Sinclair ZX Spectrum cass. |  Road Blasters Model 545867 | 1990 | Kixx 013442 |
| Sinclair ZX Spectrum cass. | Robin Smith's International Cricket | 1990 | Challenge Soft. |
| Sinclair ZX Spectrum cass. |  Robocop 2 | 1990 | Erbe Soft. Spain |
| Sinclair ZX Spectrum cass. | RoboCop 2 Model 015465 | 1990 | Ocean Soft., Ltd. 13156 |
| Sinclair ZX Spectrum cass. | Rock Star Goes Bizarre Model 2271 | 1990 | Codemasters Soft. Co., Ltd., The 015026 |
| Sinclair ZX Spectrum cass. | Rome 90 | 1990 | Qualsoft |
| Sinclair ZX Spectrum cass. | RTC Exeter | 1990 | Greenup, Ashley |
| Sinclair ZX Spectrum cass. | RTC Kings Cross | 1990 | Greenup, Ashley |
| Sinclair ZX Spectrum cass. | Ruff and Reddy in the Space Adventure Model HT049 | 1990 | Hi-Tec Soft. |
| Sinclair ZX Spectrum cass. | Run the Gauntlet | 1990 | Erbe Soft. Spain |
| Sinclair ZX Spectrum cass. | S.T.U.N. Runner | 1990 | Domark Group, Ltd. |
| Sinclair ZX Spectrum cass. | Saint Dragon P | 1990 | Dro Soft. Madrid, Spain |
| Sinclair ZX Spectrum cass. | Saint Dragon Model 001527 P | 1990 | Storm Soft. |
| Sinclair ZX Spectrum cass. | Scotrail Class 47 Fleet Manager | 1990 | Greenup, Ashley |
| Sinclair ZX Spectrum cass. | Scramble Spirits P | 1990 | Grandslam Ent., Ltd. |
| Sinclair ZX Spectrum cass. | Scramble Spirits P | 1990 | Unique |
| Sinclair ZX Spectrum cass. | Seahawk Model AT 356X | 1990 | Atlantis Soft. |
| Sinclair ZX Spectrum cass. | Senda Salvaje Model SS-013-SPE | 1990 | Zigurat Soft. Spain |
| Sinclair ZX Spectrum cass. | Serie Leyenda: Angel Nieto Pole 500cc | 1990 | IBSA Spain |
| Sinclair ZX Spectrum cass. | Serie Leyenda: Ci-U-Than Trilogy-I: Cozumel | 1990 | IBSA Spain |
| Sinclair ZX Spectrum cass. | Serie Leyenda: El Capitan Trueno Model IB-S-010 | 1990 | IBSA Spain |
| Sinclair ZX Spectrum cass. | Shadow of the Beast | 1990 | Gremlin Graphics Soft., Ltd. 013658 |
| Sinclair ZX Spectrum cass. | Shadow Warriors Model 014345 P | 1990 | Ocean Soft., Ltd. 13156 |
| Sinclair ZX Spectrum cass. | Shadows of the Past | 1990 | Compass Soft. |
| Sinclair ZX Spectrum cass. | Sherlock Holmes - The Lamberley Mystery | 1990 | Zenobi Soft. |
| Sinclair ZX Spectrum cass. | Sideral War | 1990 | Delta Soft. Spain |
| Sinclair ZX Spectrum cass. | Sim City Model 002888 P | 1990 | Infogrames Interactive, Inc. 329720 |
| Sinclair ZX Spectrum cass. | Simulador Profesional de Tenis Model SPE 900008 | 1990 | Dinamic Soft. Madrid, Spain |
| Sinclair ZX Spectrum cass. | Sirwood Model SEC 772 | 1990 | Opera Soft. Spain |
| Sinclair ZX Spectrum cass. | Sito Pons 500cc Grand Prix Model SP-017-SPE | 1990 | Zigurat Soft. Spain |
| Sinclair ZX Spectrum cass. | Skate Wars | 1990 | UBI Soft Creteil, France 307211 |
| Sinclair ZX Spectrum cass. | Sly Spy - Secret Agent | 1990 | Ocean Soft., Ltd. 13156 |
| Sinclair ZX Spectrum cass. | Snoopy Model EDG28SP | 1990 | Edge, The |
| Sinclair ZX Spectrum cass. | Snowstrike | 1990 | US Gold, Ltd. Birmingham, England 13442 |
| Sinclair ZX Spectrum cass. | Snowstrike | 1990 | US Gold, Ltd. Birmingham, England 13442 |
