| 25150 | Kinematyka | ZX-Spectrum 48K | Polish |
| 17124 | Klio 1 | ZX-Spectrum 48K | Polish |
| 24896 | Klio 2 | ZX-Spectrum 48K | Polish |
| 9214 | Klub Mikrokomputerowy Abakus | ZX-Spectrum 48K | Polish |
| 27572 | Kmiocki Sampler-Digitiser | ZX-Spectrum 48K | Polish |
| 18809 | Kolko i Krzyzyk | ZX-Spectrum 48K | Polish |
| 25357 | Kolo Fortuny | ZX-Spectrum 48K/128K | Polish |
| 26542 | Kometa Halleya | ZX-Spectrum 48K | Polish |
| 43429 | Konkret 6 | ZX-Spectrum 48K | Polish |
| 43430 | Konkret 7 - 10 | ZX-Spectrum 48K | Polish |
| 8318 | Kopiarka | ZX-Spectrum 48K | Polish |
| 8833 | Korektor Ustawienia Glowicy Magnetofonowej | ZX-Spectrum 16K | Polish |
| 2757 | Kosci Rzucone | ZX-Spectrum 48K | Polish |
| 2773 | Krolewna Jebaczka | ZX-Spectrum 48K | Polish |
| 39484 | LASKA Piję Activię | ZX-Spectrum 48K/128K | Polish |
| 2001313 | LOGO na Sinclair Spectrum volume 2: Dla Zaawansowanych | - | Polish |
| 2791 | Labirynt | ZX-Spectrum 48K | Polish |
| 12675 | Lambada! | ZX-Spectrum 48K/128K | Polish |
| 21880 | Lancuchy | ZX-Spectrum 48K | Polish |
| 25185 | Linie Swiata | ZX-Spectrum 48K | Polish |