| 2001000 | Know Your Spectrum | - | English |
| 9120 | Know Your Tables | ZX-Spectrum 16K | English |
| 15547 | Knowledge Quiz - 9/99 Yrs | ZX-Spectrum 16K | English |
| 30724 | Known Liar | - | English |
| 2730 | Knuckle Busters | ZX-Spectrum 48K | English |
| 6544 | Kobyashi Ag'Kwo | ZX-Spectrum 48K | English |
| 6545 | Kobyashi Naru | ZX-Spectrum 48K | English |
| 23229 | Kochflake | ZX-Spectrum 48K | English |
| 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 |