| 10973 | Castle Spellerous | ZX-Spectrum 48K | English |
| 9586 | Castle Thade | ZX-Spectrum 48K | English |
| 10734 | Castle Thade Revisited | ZX-Spectrum 48K | English |
| 6072 | Castle Warlock | ZX-Spectrum 48K | English |
| 18945 | Castle of Death | ZX-Spectrum 48K | English |
| 15198 | Castle of Death | ZX-Spectrum 48K | English |
| 19523 | Castle of Doom | ZX-Spectrum 48K | English |
| 18946 | Castle of Doom + Missile Command | ZX-Spectrum 48K | English |
| 6069 | Castle of Dreams | ZX-Spectrum 48K | English |
| 27213 | Castle of Lost Souls | ZX-Spectrum 48K | English |
| 32244 | Castle of Sorrow | ZX-Spectrum 48K | Multi-language: English, Spanish |
| 9585 | Castle of Terror | ZX-Spectrum 48K | English |
| 38836 | Castle of Terror | ZX-Spectrum 48K | Greek |
| 6070 | Castle of the Skull Lord | ZX-Spectrum 48K | English |
| 13178 | Castlemaze Adventure | ZX-Spectrum 48K | English |
| 11562 | Castles and Clowns | ZX-Spectrum 48K | English |
| 36453 | Castles of Oktogonia | ZX-Spectrum 48K | English |
| 27327 | Castlevania Level 1 Music Soundtracker Cover | ZX-Spectrum 48K | English |
| 7301 | Castor Intro 10: Auf Wiedersehen | ZX-Spectrum 48K | English |
| 7302 | Castor Intro 2: Trap Door | ZX-Spectrum 48K | English |