| 2612 | Jet-Story | ZX-Spectrum 48K/128K | English |
| 44153 | JetPac Miner | ZX-Spectrum 48K/128K | English |
| 36139 | Jetpack Jock | ZX-Spectrum 48K/128K | English |
| 11293 | Jewels of Darkness | ZX-Spectrum 48K/128K | English |
| 2620 | Joe Blade | ZX-Spectrum 48K/128K | English |
| 2623 | Joe Blade II | ZX-Spectrum 48K/128K | English |
| 2627 | Joe Blade III | ZX-Spectrum 48K/128K | English |
| 35146 | Joe Blob | ZX-Spectrum 48K/128K | English |
| 43748 | Johnny Danger y el Talismán de Fuego | ZX-Spectrum 48K/128K | Spanish |
| 42644 | Johnny the Ghost | ZX-Spectrum 48K/128K | English |
| 12882 | Jolly Lines | ZX-Spectrum 48K/128K | Russian |
| 2643 | Jonny Quest | ZX-Spectrum 48K/128K | English |
| 30391 | Jubbles | ZX-Spectrum 48K/128K | English |
| 11820 | Judge Dredd | ZX-Spectrum 48K/128K | English |
| 18877 | Judge Morry vs. Baldo Midget | ZX-Spectrum 48K/128K | English |
| 18926 | Jueves 12 y Sabado 14 | ZX-Spectrum 48K/128K | Spanish |
| 30245 | Jumpcollision | ZX-Spectrum 48K/128K | Spanish |
| 35681 | Jungle Queen | ZX-Spectrum 48K/128K | English |
| 2664 | Jungle Warrior | ZX-Spectrum 48K/128K | Spanish |
| 35160 | Just a Gal | ZX-Spectrum 48K/128K | English |