| 29212 | Defenda | ZX81 16K | English |
| 44862 | Defenda-se | ZX81 16K | Portuguese |
| 41805 | Defender | ZX81 16K | - |
| 32082 | Defensor 3D | ZX81 16K | Portuguese |
| 43426 | Deflexx | ZX81 16K | English |
| 43428 | Deflexx I & II | ZX81 16K | English |
| 43427 | Deflexx II | ZX81 16K | English |
| 28997 | Dehexchar-dump | ZX81 16K | Dutch |
| 40927 | Delete the Dots | ZX81 16K | English |
| 32011 | Demo | ZX81 16K | English |
| 38702 | Demo/Starter | ZX81 16K | English |
| 43487 | Demolidor | ZX81 16K | Portuguese |
| 28812 | Demolition | ZX81 16K | English |
| 41639 | Demolition Squad | ZX81 16K | English |
| 41061 | Demon's Domain | ZX81 16K | English |
| 28813 | Demons Domain | ZX81 16K | English |
| 40857 | Demonstration Plots | ZX81 16K | English |
| 39962 | Demonstration Program | ZX81 16K | English |
| 40595 | Demonstration of Logical Operators | ZX81 16K | English |
| 40596 | Demonstration of Shift/Rotate | ZX81 16K | English |