| 35102 | Knights and Demons 2 | ZX-Spectrum 48K | English |
| 29551 | Knitting Pattern | ZX81 16K | English |
| 37048 | Knock-out Whist | ZX-Spectrum 48K | English |
| 31496 | Knockabout | ZX-Spectrum 48K | English |
| 21660 | Knocker Blocker | ZX-Spectrum 48K | English |
| 39621 | Knockout | ZX-Spectrum 48K | English |
| 9884 | Knockout | ZX-Spectrum 48K | English |
| 40487 | Knockout | ZX-Spectrum 16K | English |
| 2726 | Knockout | ZX-Spectrum 48K | English |
| 2727 | Knockout | ZX-Spectrum 48K | English |
| 40578 | Knockout Fred and the Circlemen | ZX81 16K | English |
| 21629 | Knockout Whist | ZX-Spectrum 48K | English |
| 14535 | Knockout Whist | ZX-Spectrum 48K | English |
| 31058 | Knot in 2D | ZX-Spectrum 16K | English |
| 31111 | Knot in 2D (Machine Code Edition) | ZX-Spectrum 48K | English |
| 2729 | Knot in 3D | ZX-Spectrum 48K | English |
| 41229 | Knots | ZX81 1K | 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 |