| 12674 | Kock | ZX-Spectrum 48K | English |
| 2732 | Kokotoni Wilf | ZX-Spectrum 48K | English |
| 7507 | Koledy | ZX-Spectrum 48K/128K | English |
| 12902 | Kolobok Zoom 2: In The Unfair World | ZX-Spectrum 128K | English |
| 12901 | Kolobok Zoom: Teenage Mutant Hero | ZX-Spectrum 128K | English |
| 2735 | Komplex | ZX-Spectrum 48K | English |
| 11834 | Komplex City | ZX-Spectrum 48K | English |
| 25469 | Kon | ZX-Spectrum 48K | English |
| 11835 | Konami's Arcade Collection | ZX-Spectrum 48K | English |
| 11294 | Konami's Coin-Op Hits | ZX-Spectrum 48K | English |
| 2736 | Konami's Golf | ZX-Spectrum 48K | English |
| 5181 | Konami's Tennis | ZX-Spectrum 48K/128K | English |
| 2739 | Kong | ZX-Spectrum 16K | English |
| 2741 | Kong | ZX-Spectrum 48K | English |
| 29552 | Kong | ZX81 1K | English |
| 19240 | Kong | ZX-Spectrum 48K | English |
| 41449 | Kong Jump | ZX81 16K | English |
| 40952 | Kong Leap | ZX81 16K | English |
| 2742 | Kong Strikes Back | ZX-Spectrum 48K | English |
| 38674 | Kong's Revenge | ZX-Spectrum 16K | English |