| 19091 | Isotopia Construction Set | ZX-Spectrum 128 +3 | Spanish |
| 36085 | It's A Dog's Life (ZxZvm) | ZX-Spectrum 128 +3 | - |
| 17394 | Jenny's Big Disk Vol 1 | ZX-Spectrum 128 +3 | English |
| 17395 | Jenny's Big Disk Vol 2 | ZX-Spectrum 128 +3 | English |
| 17396 | Jenny's Next Big Disk Vol 1 | ZX-Spectrum 128 +3 | English |
| 17397 | Jenny's Next Big Disk Vol 2 | ZX-Spectrum 128 +3 | English |
| 32369 | Jigsaw - An Interactive History (ZxZvm) | ZX-Spectrum 128 +3 | English |
| 10842 | Jinxter | ZX-Spectrum 128 +3 | English |
| 32370 | Journey to Alpha Centauri in Real Time - An Interactive Waste of Time (ZxZvm) | ZX-Spectrum 128 +3 | English |
| 25104 | Kidnapped + For Pete's Sake | ZX-Spectrum 128 +3 | English |
| 9880 | Kingdom of Hamil | ZX-Spectrum 128 +3 | English |
| 32371 | Kook U - An Interactive Kook Adventure (ZxZvm) | ZX-Spectrum 128 +3 | English |
| 17547 | La Abadia del Crimen + Sir Fred | ZX-Spectrum 128 +3 | Spanish |
| 42849 | La Cueva del Tiempo | ZX-Spectrum 128 +3 | Spanish |
| 42201 | La Estrella de la Mañana 2023 | ZX-Spectrum 128 +3 | Spanish |
| 32372 | Lack of Vision - An Eye Opening Demo (ZxZvm) | ZX-Spectrum 128 +3 | English |
| 17855 | Las Aventuras de Pepe Trueno | ZX-Spectrum 128 +3 | Spanish |
| 17593 | Last Days of Doom | ZX-Spectrum 128 +3 | English |
| 36141 | Last Night in the Office | ZX-Spectrum 128 +3 | English |
| 15463 | Last of the Big Disks | ZX-Spectrum 128 +3 | English |