| 2718 | Knight Force | ZX-Spectrum 48K/128K | English |
| 32178 | Knight Hero | ZX-Spectrum 48K/128K | English |
| 6540 | Knight Orc | ZX-Spectrum 48K/128K | English |
| 2722 | Knight Tyme | ZX-Spectrum 48K/128K | English |
| 28054 | Knights & Demons | ZX-Spectrum 48K/128K | English |
| 28175 | Knights & Demons DX | ZX-Spectrum 48K/128K | English |
| 7507 | Koledy | ZX-Spectrum 48K/128K | English |
| 25357 | Kolo Fortuny | ZX-Spectrum 48K/128K | Polish |
| 12900 | Kolobok | ZX-Spectrum 48K/128K | Russian |
| 2734 | Komando 2 | ZX-Spectrum 48K/128K | Slovak |
| 5181 | Konami's Tennis | ZX-Spectrum 48K/128K | English |
| 2745 | Kong's Revenge | ZX-Spectrum 48K/128K | Spanish |
| 38154 | Korova Milk Bar | ZX-Spectrum 48K/128K | Multi-language: English, Spanish |
| 12906 | Kozel | ZX-Spectrum 48K/128K | Russian |
| 2761 | Kraal | ZX-Spectrum 48K/128K | English |
| 7508 | Kraft Megademo | ZX-Spectrum 48K/128K | English |
| 34810 | Krap Park | ZX-Spectrum 48K/128K | English |
| 30037 | Krunel | ZX-Spectrum 48K/128K | Multi-language: English, Polish |
| 39092 | Kuatris | ZX-Spectrum 48K/128K | English |
| 44493 | Kubanoid | ZX-Spectrum 48K/128K | Multi-language: English, Russian |