| 20267 | Income Tax | ZX-Spectrum 16K | English |
| 40898 | Indexer | ZX81 16K | English |
| 38390 | Infarkt | ZX-Spectrum 48K | Czech |
| 25810 | Instalment Payments | ZX-Spectrum 16K | English |
| 15748 | Insult Generator | ZX-Spectrum 48K | English |
| 41374 | Insulter | ZX81 16K | English |
| 20137 | Insurance Assurance | ZX-Spectrum 48K | English |
| 16496 | Inteligencia | ZX-Spectrum 48K | Spanish |
| 25115 | Intelligence Tutors & Tests 1 | ZX-Spectrum 48K | English |
| 25116 | Intelligence Tutors & Tests 2 | ZX-Spectrum 48K | English |
| 22170 | Intercalc | ZX-Spectrum 48K | English |
| 29547 | Interest Calculation | ZX81 1K | English |
| 39659 | Interesting Program | ZX-Spectrum 48K | English |
| 20279 | Interior Designer | ZX-Spectrum 48K | English |
| 22489 | International Operator | ZX-Spectrum 48K | English |
| 25019 | Interrupt Driven Clock | ZX-Spectrum 48K | 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 |