| 40388 | Invert | ZX-Spectrum 48K | English |
| 22928 | Invert | ZX-Spectrum 48K | English |
| 40170 | Invert Screen/FLASH/BRIGHT | ZX-Spectrum 48K | English |
| 25812 | Inverter | ZX-Spectrum 48K | English |
| 37569 | Inverter Routine | ZX81 16K | English |
| 25813 | Inverter/Wrap Around | ZX-Spectrum 16K | English |
| 2542 | Invertor | ZX-Spectrum 48K | English |
| 10833 | Investigations | ZX-Spectrum 128K | English |
| 40598 | Investment Appraisal | ZX81 16K | English |
| 20282 | Investment Management | ZX-Spectrum 48K | English |
| 27265 | Investment Program | ZX-Spectrum 48K | English |
| 22637 | Investor | ZX-Spectrum 48K | English |
| 22619 | Invilist | ZX-Spectrum 48K | English |
| 41225 | Invincible | ZX81 16K | English |
| 6490 | Invincible Island | ZX-Spectrum 48K | English |
| 37116 | Invincible Island ZX81 Edition | ZX81 16K | English |
| 9234 | Invincible Island hints | ZX-Spectrum 48K | English |
| 11812 | Invisible Man | ZX-Spectrum 48K | English |
| 15090 | Invoicing | ZX-Spectrum 48K | English |
| 17714 | Ireland | ZX-Spectrum 48K | English |