| 13132 | Worms | ZX-Spectrum 128K | Russian |
| 13134 | Worms | ZX-Spectrum 128K | English |
| 40500 | Wormy | ZX81 16K | English |
| 5758 | Worse Things Happen at Sea | ZX-Spectrum 48K | English |
| 10706 | Wrath of the Killer Pigs | ZX-Spectrum 48K | English |
| 32203 | Wunderwaffe | ZX-Spectrum 48K/128K | English |
| 35466 | Wurm | ZX-Spectrum 48K | Czech |
| 5765 | Wurmi | ZX-Spectrum 48K | German |
| 44632 | Wurmi Poster Maker | ZX-Spectrum 16K | Slovak |
| 20727 | X-Men | ZX-Spectrum 48K | English |
| 36549 | XMAS-oid | ZX-Spectrum 48K/128K | English |
| 27092 | XTRO | ZX-Spectrum 48K | Spanish |
| 42158 | Xadom Force | ZX-Spectrum 48K | Spanish |
| 43647 | Xantel Jones en La Tabla Verdosa | ZX-Spectrum 48K | Spanish |
| 5787 | Xeno | ZX-Spectrum 48K | - |
| 5789 | Xeno II | ZX-Spectrum 16K | English |
| 24368 | Xenon Ranger | ZX-Spectrum 48K | English |
| 21569 | Xilen War | ZX-Spectrum 48K | Spanish |
| 26177 | Xmas | ZX-Spectrum 16K | English |
| 26073 | Xmas Eve | ZX-Spectrum 16K | English |