| 21629 | Knockout Whist | ZX-Spectrum 48K | English |
| 14535 | Knockout Whist | ZX-Spectrum 48K | English |
| 31111 | Knot in 2D (Machine Code Edition) | ZX-Spectrum 48K | English |
| 2729 | Knot in 3D | ZX-Spectrum 48K | English |
| 11832 | Know Your Own Personality | ZX-Spectrum 48K | English |
| 11833 | Know Your Own Psi-Q | ZX-Spectrum 48K | English |
| 39881 | Know Your Sort | ZX-Spectrum 48K | English |
| 2730 | Knuckle Busters | ZX-Spectrum 48K | English |
| 37105 | Kobe | ZX-Spectrum 48K | French |
| 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 |
| 17084 | Kocka 2 | ZX-Spectrum 48K | Hungarian |
| 16689 | Kocka2004 | ZX-Spectrum 48K | Hungarian |
| 15601 | Kockapoker | ZX-Spectrum 48K | Hungarian |
| 13369 | Koekoek - Koekoek | ZX-Spectrum 48K | Dutch |
| 23997 | Koko Circus | ZX-Spectrum 48K | Spanish |
| 2732 | Kokotoni Wilf | ZX-Spectrum 48K | English |
| 9885 | Koky | ZX-Spectrum 48K | Czech |