| 43325 | Knacki | ZX-Spectrum 48K | German |
| 16195 | Knight Car | ZX-Spectrum 48K | Spanish |
| 13330 | Knight Fight | ZX-Spectrum 48K | English |
| 15041 | Knight Ghost | ZX-Spectrum 48K | Spanish |
| 40465 | Knight's Move | ZX81 16K | English |
| 30243 | Knightmare 2 ZX | ZX-Spectrum 48K | English |
| 36681 | Knights And Chalices | ZX-Spectrum Next | English |
| 29016 | Knikkers | ZX81 16K | Dutch |
| 21660 | Knocker Blocker | ZX-Spectrum 48K | English |
| 2726 | Knockout | ZX-Spectrum 48K | English |
| 40487 | Knockout | ZX-Spectrum 16K | English |
| 39621 | Knockout | ZX-Spectrum 48K | English |
| 40578 | Knockout Fred and the Circlemen | ZX81 16K | English |
| 29017 | Knoop | ZX81 16K | Dutch |
| 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 |
| 23997 | Koko Circus | ZX-Spectrum 48K | Spanish |
| 12902 | Kolobok Zoom 2: In The Unfair World | ZX-Spectrum 128K | English |