| 2726 | Knockout | ZX-Spectrum 48K | English |
| 2727 | Knockout | ZX-Spectrum 48K | English |
| 40578 | Knockout Fred and the Circlemen | ZX81 16K | English |
| 14535 | Knockout Whist | ZX-Spectrum 48K | English |
| 21629 | 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 |
| 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 |