| Sinclair ZX Spectrum cass. |  The Key | 1983 | Keysoft |
| Sinclair ZX Spectrum cass. | The Key | 1983 | Venny Soft. |
| Sinclair ZX Spectrum cass. | The Landscape Creator | 1985 | James, Brian |
| Sinclair ZX Spectrum cass. | The Light Pen | 1984 | Add On Electronics, Ltd. |
| Sinclair ZX Spectrum cass. | The Liner 67 | 1994 | Bano, Cesar Hernandez |
| Sinclair ZX Spectrum cass. | The Lords of Midnight Editor | 1984 | PDT |
| Sinclair ZX Spectrum cass. | The Love Oracle | 1985 | Solar Publishing |
| Sinclair ZX Spectrum cass. | The Micro At Work Software Cassette 1 | 1985 | Granada Publishing |
| Sinclair ZX Spectrum cass. | The Micro At Work Software Cassette 2 | 1985 | Granada Publishing |
| Sinclair ZX Spectrum cass. | The OCP Art Studio | 1985 | Datel Electronics |
| Sinclair ZX Spectrum cass. | The OCP Art Studio | 1985 | Rainbird Soft. UK 012439 |
| Sinclair ZX Spectrum cass. | The Page Maker | 1986 | Softechnics |
| Sinclair ZX Spectrum cass. | The Painter 58 | 1993 | Bano, Cesar Hernandez |
| Sinclair ZX Spectrum cass. | The Prediction Birthday File | 1985 | Blandford Press |
| Sinclair ZX Spectrum cass. | The Press | 1986 | Gilsoft International, Ltd. |
| Sinclair ZX Spectrum cass. | The Prince | 1985 | ACS Soft. Alexander Computing Systems |
| Sinclair ZX Spectrum cass. | The Quill + Illustrator | 1985 | Gilsoft International, Ltd. |
| Sinclair ZX Spectrum cass. | The Quill Adventure System - The Patch | 1985 | Gilsoft International, Ltd. |
| Sinclair ZX Spectrum cass. | The Quill Adventure System A series | 1983 | Gilsoft International, Ltd. |
| Sinclair ZX Spectrum cass. | The Quill Adventure System C series | 1983 | Gilsoft International, Ltd. |
| Sinclair ZX Spectrum cass. | The Real You | 1985 | Book Club Associates |
| Sinclair ZX Spectrum cass. | The Spectrum Pocket Book | 1983 | Phipps Associates |
| Sinclair ZX Spectrum cass. | The Spreadsheet | 1982 | MiCROL |
| Sinclair ZX Spectrum cass. | The St. Petersburg Ikon | 1986 | RD Foord Soft. |
| Sinclair ZX Spectrum cass. | The Theorem of Pythagoras | 1984 | Griffin Soft. |
| Sinclair ZX Spectrum cass. | The Visual Processor | 1982 | Gilsoft International, Ltd. |
| Sinclair ZX Spectrum cass. | The Word Processor | 1983 | MiCROL |
| Sinclair ZX Spectrum cass. | The Writer | 1985 | Softechnics |
| Sinclair ZX Spectrum cass. | Theory of Music Level 1 | 1987 | Kirk, Ted |
| Sinclair ZX Spectrum cass. | Theory of Music Questions and Exercises | 1986 | Kirk, Ted |
| Sinclair ZX Spectrum cass. | Time Switch v2 | 1985 | RD Foord Soft. |
| Sinclair ZX Spectrum cass. | Time-Line | 1983 | Gilsoft International, Ltd. |
| Sinclair ZX Spectrum cass. | Tinocopy | 1984 | Camel Micros |
| Sinclair ZX Spectrum cass. | Tip Secrets | 1983 | PDQ |
| Sinclair ZX Spectrum cass. | Toolkit | 198? | Profisoft Germany |
| Sinclair ZX Spectrum cass. | Toolkit | 1984 | Kerian |
| Sinclair ZX Spectrum cass. | Totocalcio Ver.2.1 | 1984 | Pacchiarotti, Mario |
| Sinclair ZX Spectrum cass. | Trace | 1983 | Texgate Computers |
| Sinclair ZX Spectrum cass. | Trans-Express - Tape To Microdrive | 1984 | Romantic Robot UK |
| Sinclair ZX Spectrum cass. | Trans-Former | 1985 | ACS Soft. Alexander Computing Systems |
