| 1314 | Defcom 1 | ZX-Spectrum 48K/128K | Spanish |
| 44862 | Defenda-se | ZX81 16K | Portuguese |
| 44201 | Defender | ZX-Spectrum 16K/48K | German |
| 41805 | Defender | ZX81 16K | - |
| 26654 | Defender | ZX-Spectrum 16K | English |
| 40075 | Defender | ZX-Spectrum 48K | English |
| 1323 | Defenders of the Earth | ZX-Spectrum 48K/128K | English |
| 28335 | Defenders of the Earth | SAM Coupé | English |
| 42894 | Defensa de la ciudad | ZX-Spectrum 16K/48K | Spanish |
| 43080 | Defensas | ZX-Spectrum 16K/48K | Spanish |
| 25507 | Deflector | ZX-Spectrum 16K | English |
| 26020 | Deflector | ZX-Spectrum 48K | English |
| 1327 | Deflektor | ZX-Spectrum 48K | English |
| 43426 | Deflexx | ZX81 16K | English |
| 43427 | Deflexx II | ZX81 16K | English |
| 40665 | Defuse | ZX80 | English |
| 22029 | Defusion | ZX-Spectrum 48K | English |
| 40927 | Delete the Dots | ZX81 16K | English |
| 27413 | Delta | ZX-Spectrum 48K | Spanish |
| 36563 | Delta's Shadow | Pentagon 128 | Multi-language: English, Polish, Russian, Spanish |