| 2583 | Jawz | ZX-Spectrum 16K | English |
| 19698 | Jedhi Chase | ZX-Spectrum 48K | English |
| 42656 | Jeff and the Christmas Tat | ZX-Spectrum 48K/128K | English |
| 43868 | Jenseits Von Andromeda | ZX-Spectrum 48K | German |
| 31427 | Jeremy Clarkson's Top Shelf Challenge | ZX-Spectrum 48K | English |
| 37347 | Jeri | ZX-Spectrum 48K | French |
| 37709 | Jerry's Endless Travels: Destroy Cursed Ball | ZX-Spectrum 48K | English |
| 37593 | Jet Boat | ZX81 16K | English |
| 18426 | Jet Flight | ZX-Spectrum 16K | English |
| 34517 | Jet Flyer | ZX81 16K | English |
| 31158 | Jet Rocket | ZX-Spectrum 48K | English |
| 43519 | Jet Scout | ZX81 16K | English |
| 9865 | Jet Set Spidery | ZX-Spectrum 48K | English |
| 18307 | Jet Set Teddy | ZX-Spectrum 48K | English |
| 31367 | Jet Set Willy v1.0 | ZX-Spectrum 48K | English |
| 2612 | Jet-Story | ZX-Spectrum 48K/128K | English |
| 35942 | JetPac | ZX81 16K | English |
| 44153 | JetPac Miner | ZX-Spectrum 48K/128K | English |
| 31940 | JetPac'81 | ZX81 16K | English |
| 31941 | JetPac'81 - Chroma Edition | ZX81 16K | English |