| 41278 | Krazy Kong | ZX-Spectrum 48K | English |
| 31943 | Krazy Kong - Chroma Edition | ZX81 16K | English |
| 29107 | Kreumelmonster | ZX81 2K | German |
| 15856 | Krom | ZX-Spectrum 48K | Spanish |
| 36557 | Krpat | ZX-Spectrum 48K | Slovak |
| 12607 | Krypton Raiders | ZX-Spectrum 48K | Spanish |
| 43658 | Ku Bernd | ZX-Spectrum 48K | German |
| 23447 | Kuiper Pursuit | ZX-Spectrum 48K/128K | English |
| 18353 | Kung Fu 2 | ZX-Spectrum 48K | - |
| 10572 | Kung Fu Knights | ZX-Spectrum 48K | English |
| 32167 | Kung-Fu Toba | ZX-Spectrum 128K | Spanish |
| 39183 | Kunga! | ZX-Spectrum 48K | Portuguese |
| 27563 | Kunibert | ZX-Spectrum 48K | German |
| 23859 | Kurashiku Nihongo Monsuta Shiro 3 | ZX-Spectrum 48K | Spanish |
| 2782 | Kuželky | ZX-Spectrum 48K | Czech |
| 9367 | Kwik Snax | ZX-Spectrum 48K/128K | English |
| 18315 | KyberTorba | ZX-Spectrum 16K | English |
| 27266 | L'Ete Sera Chaud | ZX-Spectrum 48K | French |
| 34323 | LD-Snake | ZX-Spectrum 48K | English |
| 31432 | LENtils FOR SaTAN | ZX-Spectrum 48K | English |