| 38385 | Klavír | ZX-Spectrum 16K | Czech |
| 15896 | Kludo | ZX-Spectrum 16K | English |
| 9882 | Kludo + Battleships | ZX-Spectrum 16K | English |
| 40487 | Knockout | ZX-Spectrum 16K | English |
| 31058 | Knot in 2D | ZX-Spectrum 16K | English |
| 9120 | Know Your Tables | ZX-Spectrum 16K | English |
| 15547 | Knowledge Quiz - 9/99 Yrs | ZX-Spectrum 16K | English |
| 2739 | Kong | ZX-Spectrum 16K | English |
| 38674 | Kong's Revenge | ZX-Spectrum 16K | English |
| 18724 | Kongo | ZX-Spectrum 16K | English |
| 44525 | Kopaná | ZX-Spectrum 16K | Czech |
| 20654 | Kopy Kat | ZX-Spectrum 16K | English |
| 11089 | Kopy Kat | ZX-Spectrum 16K | English |
| 20301 | Kopycat | ZX-Spectrum 16K | English |
| 8833 | Korektor Ustawienia Glowicy Magnetofonowej | ZX-Spectrum 16K | Polish |
| 13998 | Krago Castle | ZX-Spectrum 16K | English |
| 2766 | Krakit | ZX-Spectrum 16K | English |
| 13165 | Krazy Kong + Panic Island | ZX-Spectrum 16K | English |
| 28046 | Krazy Kong + Panic Island + Rocket Raider | ZX-Spectrum 16K | English |
| 26902 | Kung Fu | ZX-Spectrum 16K | English |