| 3738 | Infernal Combustion | ZX-Spectrum 48K | English |
| 41403 | Inferno | Sinclair QL | English |
| 16033 | Inferno | ZX-Spectrum 16K | English |
| 18395 | Inferno | ZX-Spectrum 16K | English |
| 26207 | Infestation | ZX-Spectrum 16K | English |
| 32363 | Infidel (ZxZvm) | ZX-Spectrum 128 +3 | English |
| 14581 | Infilaquattro | ZX-Spectrum 48K | English |
| 2482 | Infiltrator | ZX-Spectrum 48K | English |
| 24374 | Infiltrator II: The Next Day | ZX-Spectrum 48K | English |
| 26697 | Infinite Scroll | ZX-Spectrum 16K | English |
| 20275 | Infinity | ZX-Spectrum 48K | English |
| 40305 | Infix to Postfix Conversion | ZX-Spectrum 48K | English |
| 7475 | Influence | ZX-Spectrum 128K | English |
| 32364 | Infocom Sampler 1 (ZxZvm) | ZX-Spectrum 128 +3 | English |
| 32365 | Infocom Sampler 1 - Newer (ZxZvm) | ZX-Spectrum 128 +3 | English |
| 32366 | Infocom Sampler 2 (ZxZvm) | ZX-Spectrum 128 +3 | English |
| 13860 | Infodroid | ZX-Spectrum 48K | English |
| 20886 | Infoload | ZX-Spectrum 48K | English |
| 20276 | Infoloc | ZX-Spectrum 48K | English |
| 2000181 | Information Handling for the ZX Spectrum | - | English |