| 39166 | Joker | ZX-Spectrum 48K | English |
| 43712 | Joker (2023) | ZX-Spectrum 48K | English |
| 2638 | Jokers Wild | ZX-Spectrum 48K | English |
| 6515 | Jolly Duplicator | ZX-Spectrum 48K | English |
| 6516 | Jolly Jack's Run Ashore | ZX-Spectrum 48K | English |
| 42425 | Jolly Joe Volley | ZX-Spectrum 48K | English |
| 22796 | Jolly Poppa Down | ZX-Spectrum 48K | English |
| 2639 | Jolly Roger | ZX-Spectrum 48K | English |
| 11818 | Jolly Roger | ZX-Spectrum 48K | English |
| 2640 | Jon the Jany | ZX-Spectrum 48K | English |
| 2641 | Jonah Barrington's Squash | ZX-Spectrum 48K | English |
| 38797 | Jonathan - Trick or Treat | ZX-Spectrum 48K | English |
| 27171 | Jonathan Thompson: Oregon | ZX-Spectrum 48K | Italian |
| 2642 | Jongleur | ZX-Spectrum 48K | German |
| 21902 | Jotter! | ZX-Spectrum 48K | English |
| 24982 | Journey Bis | ZX-Spectrum 48K | English |
| 30215 | Journey to Another World | ZX-Spectrum 48K | Multi-language: English, Spanish |
| 6517 | Journey to Death | ZX-Spectrum 48K | English |
| 6518 | Journey to the Centre of Eddie Smith's Head | ZX-Spectrum 48K | English |
| 17425 | Journey to the Centre of the Earth | ZX-Spectrum 48K | English |