| 35542 | Karel | ZX81 16K | Czech |
| 2675 | Karel 85 | ZX-Spectrum 48K | Czech |
| 38382 | Kartotéka programů | ZX-Spectrum 48K | Czech |
| 35394 | Katanga | ZX-Spectrum 48K | Czech |
| 43194 | Katastrofa | ZX-Spectrum 48K | Czech |
| 8308 | Kdo Jsi? | ZX-Spectrum 48K | Czech |
| 8309 | Kdo to ví, odpoví | ZX-Spectrum 48K | Czech |
| 15650 | Kecal 2 | ZX-Spectrum 48K | Czech |
| 45249 | Keith Paperback | ZX-Spectrum 48K | Czech |
| 45250 | Keith Paperback a Jeskyne smrti | ZX-Spectrum 48K | Czech |
| 38353 | Kilometry | ZX-Spectrum 48K | Czech |
| 37380 | King | ZX-Spectrum 48K | Czech |
| 35517 | King's Order | ZX-Spectrum 48K | Czech |
| 37394 | Klavír | ZX-Spectrum 48K | Czech |
| 38385 | Klavír | ZX-Spectrum 16K | Czech |
| 35395 | Klingoni | ZX-Spectrum 48K | Czech |
| 23578 | Klub uživatelů Desktopu 1 | ZX-Spectrum 48K | Czech |
| 23579 | Klub uživatelů Desktopu 2 | ZX-Spectrum 48K | Czech |
| 23577 | Klub uživatelů Desktopu 3 | ZX-Spectrum 48K | Czech |
| 23580 | Klub uživatelů Desktopu 4 | ZX-Spectrum 48K | Czech |