| 22033 | Insta-Matchit | ZX-Spectrum 48K | English |
| 25810 | Instalment Payments | ZX-Spectrum 16K | English |
| 2000189 | Instant Arcade Games for the Sinclair ZX Spectrum | - | English |
| 26898 | Instant Command | ZX-Spectrum 16K | English |
| 11801 | Instant Recall | ZX-Spectrum 48K/128K | English |
| 39985 | Instant Screen | ZX81 16K | English |
| 2000190 | Instant Spectrum Programming | - | English |
| 8281 | Instant User Defined Graphics | ZX-Spectrum 48K | English |
| 21312 | Instrument | ZX-Spectrum 48K | English |
| 15748 | Insult Generator | ZX-Spectrum 48K | English |
| 42067 | Insult Megademo | ZX-Spectrum 48K | English |
| 41374 | Insulter | ZX81 16K | English |
| 20137 | Insurance Assurance | ZX-Spectrum 48K | English |
| 2490 | Insurgency | ZX-Spectrum 48K | English |
| 8282 | Integer Compiler | ZX-Spectrum 48K | English |
| 20277 | Integrated Accounts | ZX-Spectrum 48K | English |
| 8283 | Integration | ZX-Spectrum 48K | English |
| 25115 | Intelligence Tutors & Tests 1 | ZX-Spectrum 48K | English |
| 25116 | Intelligence Tutors & Tests 2 | ZX-Spectrum 48K | English |
| 2491 | Intensity | ZX-Spectrum 48K | English |