| 32367 | Informatory - A Not Very Interactive Pastiche with Tutorial Pretensions (ZxZvm) | ZX-Spectrum 128 +3 | English |
| 32128 | Inherit (Die Erbe) | ZX-Spectrum 48K | English |
| 32368 | Inhumane - An Infralogic Massacre (ZxZvm) | ZX-Spectrum 128 +3 | English |
| 6484 | Inka-Tempel | ZX-Spectrum 48K | German |
| 10832 | Inquisitor | ZX-Spectrum 48K | English |
| 10414 | Interrogacion | ZX-Spectrum 48K | Spanish |
| 6487 | Into the Mystic | ZX-Spectrum 48K | English |
| 6344 | Intravoid | ZX-Spectrum 48K | English |
| 36084 | Intruder - Interactive Fiction: A Burglary (ZxZvm) | ZX-Spectrum 128 +3 | - |
| 43882 | Intruders | ZX-Spectrum 16K | English |
| 37116 | Invincible Island ZX81 Edition | ZX81 16K | English |
| 37253 | Island Adventure | ZX-Spectrum 48K | English |
| 10834 | Island of Chaos | ZX-Spectrum 48K | English |
| 21106 | Island of Darkness | ZX-Spectrum 48K | Russian |
| 18919 | Island of Death | ZX-Spectrum 48K | English |
| 19198 | Island of Secrets | ZX-Spectrum 48K | - |
| 9860 | Islets of Langerhans | ZX-Spectrum 48K | English |
| 36085 | It's A Dog's Life (ZxZvm) | ZX-Spectrum 128 +3 | - |
| 23604 | It's a Myth-tery | ZX-Spectrum 48K | English |
| 37352 | Italianate | ZX-Spectrum 48K | English |