| Sinclair ZX Spectrum cass. |  Gold Silver Bronze | 1988 | US Gold, Ltd. Birmingham, England 13442 |
| Sinclair ZX Spectrum cass. |  Gothik Model SEC-511 | 1988 | MCM Soft. Spain |
| Sinclair ZX Spectrum cass. |  Graham Gooch's Match Cricket Model AS237 | 1988 | Alternative Soft., Ltd. |
| Sinclair ZX Spectrum cass. | Grand Prix Tennis Model IS 0223 | 1988 | MAD Mastertronic Added Dimension |
| Sinclair ZX Spectrum cass. | Grid Iron - American Football | 1988 | Top Ten Soft. |
| Sinclair ZX Spectrum cass. | Guerrilla War - Hail the Heroes | 1988 | Erbe Soft. Spain |
| Sinclair ZX Spectrum cass. | Guerrilla War Model 112294 | 1988 | Imagine Soft. Ocean Group 13156 |
| Sinclair ZX Spectrum cass. | Gunfighter Model AT 345 | 1988 | Atlantis Soft. |
| Sinclair ZX Spectrum cass. | Gunpowder, Treason and Plot | 1988 | Redwood Designs |
| Sinclair ZX Spectrum cass. | Gutz Model 012440 | 1988 | Ocean Soft., Ltd. 13156 |
| Sinclair ZX Spectrum cass. | Habilit Model SEC 522 | 1988 | Iber Soft. Spain |
| Sinclair ZX Spectrum cass. | Hamte Damte | 1988 | Cross Technics Sweden |
| Sinclair ZX Spectrum cass. | Hangman | 1988 | RD Foord Soft. |
| Sinclair ZX Spectrum cass. | Harrier Attack! Model 200336 | 1988 | Encore 012189 |
| Sinclair ZX Spectrum cass. | Hercules - Slayer of the Damned Model 019688 | 1988 | Gremlin Graphics Soft., Ltd. 013658 |
| Sinclair ZX Spectrum cass. | Hercules Slayer of the Damned | 1988 | Erbe Soft. Spain |
| Sinclair ZX Spectrum cass. | History in the Making | 1988 | US Gold, Ltd. Birmingham, England 13442 |
| Sinclair ZX Spectrum cass. | Hopper Copper | 1988 | Silverbird Soft. 012439 |
| Sinclair ZX Spectrum cass. | Hopping Mad | 1988 | Elite Systems, Ltd. |
| Sinclair ZX Spectrum cass. | Hotshot | 1988 | Addictive Games |
| Sinclair ZX Spectrum cass. | Human Killing Machine | 1988 | US Gold, Ltd. Birmingham, England 13442 |
| Sinclair ZX Spectrum cass. | Humphrey Model HU-001-SPE | 1988 | Zigurat Soft. Spain |
| Sinclair ZX Spectrum cass. | Hundra Model SPE 8800008 | 1988 | Dinamic Soft. Madrid, Spain |
| Sinclair ZX Spectrum cass. | Hustler | 1988 | Top Ten Soft. |
| Sinclair ZX Spectrum cass. | Hydrofool Model 010663 | 1988 | Rack-It 012635 |
| Sinclair ZX Spectrum cass. | I Alien | 1988 | CRL Group PLC London, England |
| Sinclair ZX Spectrum cass. | Ikari Warriors | 1988 | Elite Systems, Ltd. |
| Sinclair ZX Spectrum cass. | Impact Model ASL50SC P | 1988 | ASL Audiogenic Soft., Ltd. |
| Sinclair ZX Spectrum cass. | Impossible Mission | 1988 | Dro Soft. Madrid, Spain |
| Sinclair ZX Spectrum cass. | Impossible Mission II Model 537206 | 1988 | US Gold, Ltd. Birmingham, England 13442 |
| Sinclair ZX Spectrum cass. | In Search of the Lost Valley | 1988 | Megasoft |
| Sinclair ZX Spectrum cass. | Ingrid's Back | 1988 | Level 9 Computing |
| Sinclair ZX Spectrum cass. | Ingrid's Back! | 1988 | Level 9 Computing |
| Sinclair ZX Spectrum cass. | Inside Outing Model EDG 21SC | 1988 | Edge, The |
| Sinclair ZX Spectrum cass. | Intensity | 1988 | MCM Soft. Spain |
| Sinclair ZX Spectrum cass. | Intensity Model 000086 | 1988 | Firebird Soft. UK 017096 |
| Sinclair ZX Spectrum cass. | International Cricket | 1988 | Bug-Byte London, England |
| Sinclair ZX Spectrum cass. | International Rugby Simulator Model 2104 | 1988 | Codemasters Soft. Co., Ltd., The 015026 |
| Sinclair ZX Spectrum cass. | International Speedway | 1988 | Silverbird Soft. 012439 |
| Sinclair ZX Spectrum cass. | Jester Quest | 1988 | Nebula Designs Soft. |
