| 36938 | ILLUMINATI: 2021 WOOT! EDITION | ZX-Spectrum 16K | English |
| 11814 | IQ | ZX-Spectrum 48K | English |
| 19140 | Iceberg | ZX-Spectrum 16K | English |
| 27797 | Identisquares | ZX-Spectrum 16K | English |
| 35787 | Igra | ZX-Spectrum 48K | English |
| 36605 | Illuminati | ZX81 16K | English |
| 39031 | Illuminati II - The Davos Deadlock | ZX-Spectrum 48K | English |
| 27332 | Image | ZX-Spectrum 48K | English |
| 44793 | Impicatto | ZX-Spectrum 16K/48K | Italian |
| 34345 | Inertia | ZX-Spectrum 48K/128K | English |
| 30016 | Inferno | ZX-Spectrum 48K | Spanish |
| 42526 | Informační program | ZX-Spectrum 48K | Czech |
| 33382 | Ink Fall | ZX-Spectrum 48K | English |
| 2487 | Insector Hecti in the Interchange | ZX-Spectrum 48K/128K | English |
| 27798 | Insects | ZX-Spectrum 16K | English |
| 28028 | Intergalactic Space Rescue | ZX-Spectrum 16K | English |
| 33364 | International Sokoban | Pentagon 128 | Russian |
| 18428 | Intruder | ZX-Spectrum 16K | English |
| 3574 | Invader Cube | ZX-Spectrum 48K | English |
| 29000 | Inversion | ZX81 16K | English |