| 14786 | Jet Set Willy Sprite Library | ZX-Spectrum 48K | English |
| 17532 | Jet Set Willy: DefRoom | ZX-Spectrum 48K | English |
| 14723 | Jet Set Willy: Dr. Jet Set Willy Microdrive Tape | ZX-Spectrum 48K | English |
| 2587 | JetSet Willy Editor | ZX-Spectrum 48K | English |
| 14734 | Knight Lore Designer | ZX-Spectrum 48K | English |
| 20038 | Knight Lore Designer | ZX-Spectrum 48K | English |
| 27609 | Laser Squad - The Map Editor | ZX-Spectrum 48K | English |
| 25373 | Laser Squad Editor | ZX-Spectrum 48K | Russian |
| 25372 | Laser Squad Editor | ZX-Spectrum 48K | Russian |
| 21778 | Laser Squad Editor | ZX-Spectrum 48K | - |
| 25390 | Laser Squad Level Editor | ZX-Spectrum 48K | - |
| 25277 | Laser Squad Level Editor | ZX-Spectrum 48K | Russian |
| 12916 | Last Battle Mission Editor | ZX-Spectrum 48K/128K | Russian |
| 9236 | Lemmings Editor | ZX-Spectrum 48K | English |
| 25588 | Manic Designer | ZX-Spectrum 48K | English |
| 14589 | Manic Designer 2 | ZX-Spectrum 48K | English |
| 3020 | Manic Miner Editor | ZX-Spectrum 48K | English |
| 14735 | Manic Miner Game Designer & Editor | ZX-Spectrum 48K | English |
| 19760 | Manic Miner Graphics Designer | ZX-Spectrum 48K | English |
| 19761 | Manic Miner Levels Designer | ZX-Spectrum 48K | English |