| 2542 | Invertor | ZX-Spectrum 48K | English |
| 18475 | Invisible | ZX-Spectrum 16K | Spanish |
| 17362 | Iron Sphere | ZX-Spectrum 48K | English |
| 42842 | Isa Brave | ZX-Spectrum 48K/128K | English |
| 30240 | Ishido: The Way of Stones | ZX-Spectrum 16K | English |
| 36628 | Isitar 7 | ATM | English |
| 18540 | Isotopia | ZX-Spectrum 128K | Spanish |
| 19091 | Isotopia Construction Set | ZX-Spectrum 128 +3 | Spanish |
| 39049 | Italy Raid | ZX-Spectrum 48K | Italian |
| 43208 | JAMGame | ZX81 16K | English |
| 39522 | Jam! | ZX-Spectrum 48K | English |
| 12880 | Japan Crossword | ZX-Spectrum 128K | English |
| 12881 | Japanese Contrast | ZX-Spectrum 128K | Russian |
| 37016 | Jeu De Marienbad | ZX-Spectrum 16K | French |
| 21903 | Jig!Blox Competition | ZX-Spectrum 48K | English |
| 10564 | Jigsaw | ZX-Spectrum 48K | English |
| 32200 | Jilly's Farm Volume 1 - SokoBAArn! | ZX-Spectrum 48K | English |
| 22748 | Job Finder | ZX-Spectrum 48K | English |
| 37644 | Jogo do Caça-Palavra | ZX-Spectrum 48K | Portuguese |
| 42597 | Jogo dos Paus | ZX-Spectrum 48K | Portuguese |