| 21608 | Wriggler | ZX-Spectrum 48K | English |
| 5761 | Wriggler | ZX-Spectrum 48K | English |
| 5798 | X-Maze | ZX-Spectrum 16K | English |
| 44221 | X-Men | ZX81 16K | English |
| 17214 | XOR 2000: Russian Invasion | ZX-Spectrum 128K | Russian |
| 5770 | Xadom | ZX-Spectrum 48K | - |
| 4000272 | Xadom | Timex Tx2068 | English |
| 5779 | Xavior | ZX-Spectrum 48K | English |
| 44712 | Xenomaze | ZX-Spectrum 48K/128K | English |
| 18159 | Xirius | ZX-Spectrum 48K | Spanish |
| 26002 | Yacht Race | ZX-Spectrum 16K | English |
| 27988 | Yumiko in the Haunted Mansion | ZX-Spectrum 48K/128K | English |
| 5858 | Z-Man | ZX-Spectrum 16K | English |
| 29443 | ZOMAARWA | ZX81 16K | German |
| 36926 | ZX Adventure | ZX81 16K | English |
| 37657 | ZX Adventure | ZX-Spectrum 48K | English |
| 43389 | ZX Amaze | ZX81 2K | English |
| 34287 | ZX Digger 1 | ZX-Spectrum 48K | English |
| 33380 | ZX Dungeon | ZX-Spectrum 48K | English |
| 18660 | ZX Man | ZX-Spectrum 48K | English |