| 30748 | Ivor the Engine | ZX-Spectrum 16K | English |
| 2561 | Iwo Jima | ZX-Spectrum 48K | English |
| 17551 | Izzy Wizzy | ZX-Spectrum 48K | English |
| 2604 | J4 - The Fourth Remix | ZX-Spectrum 48K | English |
| 43208 | JAMGame | ZX81 16K | English |
| 30203 | JAWS: The Text Adventure | ZX-Spectrum 48K | English |
| 31292 | JET-ROCKET | ZX-Spectrum 48K | English |
| 43709 | JIM English | ZX-Spectrum 48K | English |
| 27381 | JINJ 2: Belmonte's Revenge | ZX-Spectrum 48K/128K | English |
| 43905 | JJ52's Cassette 50 | ZX-Spectrum 48K | English |
| 19292 | JMB Poems | ZX-Spectrum 48K | English |
| 30005 | JOY | ZX-Spectrum 48K | English |
| 8300 | JP-Clone | ZX-Spectrum 48K | English |
| 21329 | JPEG Viewer | ZX-Spectrum 48K | English |
| 4000044 | JRC Catalog 3 | Timex Tx2068 | English |
| 10541 | JSW 1-1 | ZX-Spectrum 48K | English |
| 34861 | JSW 128 VK3 | ZX-Spectrum 48K | English |
| 34862 | JSW 128 VL5 | ZX-Spectrum 48K | English |
| 34893 | JSW 2015 Bugfixed Edition | ZX-Spectrum 48K | English |
| 34892 | JSW April++ | ZX-Spectrum 48K | English |