| 31874 | Wordplay 1 | ZX81 16K | - |
| 31884 | Words | ZX81 16K | - |
| 41508 | Wordsquare | ZX81 16K | English |
| 41065 | Wordy | ZX81 16K | English |
| 39991 | World Cup | ZX81 16K | English |
| 31885 | World Cup Football (Test your knowledge of) | ZX81 16K | - |
| 41789 | World Of Illusions | ZX81 16K | - |
| 29231 | World Wide Recipes Vol.2 | ZX81 16K | English |
| 43716 | Worm (2024) | ZX81 16K | English |
| 41559 | Worms | ZX81 16K | English |
| 40500 | Wormy | ZX81 16K | English |
| 40713 | Write Fast-Moving Graphics on Your ZX81 | ZX81 16K | English |
| 44221 | X-Men | ZX81 16K | English |
| 38823 | Xadrez | ZX81 16K | Portuguese |
| 29439 | Yahtzee | ZX81 16K | Dutch |
| 36031 | Yankee Clipper | ZX81 16K | English |
| 32071 | Yoogor | ZX81 16K | English |
| 29441 | Yoric's Revenge | ZX81 16K | English |
| 42960 | You are Offline | ZX81 16K | English |
| 39951 | Z-Code | ZX81 16K | English |