| 22404 | Jargonaut | ZX-Spectrum 48K | English |
| 16854 | Jarrin' Pick | ZX-Spectrum 48K | Spanish |
| 16890 | Jason | ZX-Spectrum 48K | Spanish |
| 10836 | Jason and the Golden Fleece | ZX-Spectrum 48K | English |
| 9862 | Jason of the Argonauts | ZX-Spectrum 48K | English |
| 2579 | Jason's Gem | ZX-Spectrum 48K | English |
| 2580 | Jasper! | ZX-Spectrum 48K | English |
| 24566 | Jatek | ZX-Spectrum 48K | Hungarian |
| 42203 | Javi versus Parrish | ZX-Spectrum 48K | Multi-language: English, Spanish |
| 18513 | Javilero 3 | ZX-Spectrum 48K | Spanish |
| 16632 | Jaws | ZX-Spectrum 48K | English |
| 42646 | JeT SeT JnR aNd ThE CuRsE oF ThE PhArAoH | ZX-Spectrum 48K | English |
| 27455 | Jealousy | ZX-Spectrum 48K | Russian |
| 19698 | Jedhi Chase | ZX-Spectrum 48K | English |
| 18796 | Jedicopy and Supersave | ZX-Spectrum 48K | English |
| 21347 | Jemmini Commander | ZX-Spectrum 48K | Russian |
| 14941 | Jennifer's Dolly | ZX-Spectrum 48K | English |
| 43868 | Jenseits Von Andromeda | ZX-Spectrum 48K | German |
| 14002 | Jeremy | ZX-Spectrum 48K | English |
| 31427 | Jeremy Clarkson's Top Shelf Challenge | ZX-Spectrum 48K | English |