| 26691 | High Score | ZX-Spectrum 48K | English |
| 25803 | Highscore | ZX-Spectrum 16K | English |
| 37421 | HyperPrint | ZX-Spectrum 48K | French |
| 38298 | IUC88+ | ZX-Spectrum 48K | English |
| 23034 | Input | ZX-Spectrum 48K | English |
| 22033 | Insta-Matchit | ZX-Spectrum 48K | English |
| 8282 | Integer Compiler | ZX-Spectrum 48K | English |
| 11084 | Interactive BASIC Programming | ZX-Spectrum 48K | English |
| 16958 | Interrupt Driven Clock | ZX-Spectrum 16K | English |
| 22992 | Interruptmaker | ZX-Spectrum 48K | English |
| 22619 | Invilist | ZX-Spectrum 48K | English |
| 17095 | Kama Basic I | ZX-Spectrum 48K | Multi-language: English, Spanish |
| 17096 | Kama Basic II | ZX-Spectrum 48K | Multi-language: English, Slovak |
| 12625 | Keydefine | ZX-Spectrum 48K | English |
| 26901 | Keywords | ZX-Spectrum 16K | English |
| 21785 | Kit Basic | ZX-Spectrum 48K | Spanish |
| 19752 | Kit-Tool | ZX-Spectrum 16K | English |
| 8367 | LLIST 642 | ZX-Spectrum 48K | Slovenian |
| 16535 | La Zona de Variables | ZX-Spectrum 48K | Spanish |
| 26903 | Labels | ZX-Spectrum 16K | English |