| 2000228 | Machine Code Programming on the Sinclair QL | Sinclair QL | English |
| 8377 | Machine Code Relocator | ZX-Spectrum 48K | English |
| 40953 | Machine Code Scroll | ZX81 16K | English |
| 39805 | Machine Code Sounds | ZX-Spectrum 48K | English |
| 39902 | Machine Code Sounds | ZX-Spectrum 48K | English |
| 18777 | Machine Code Spion | ZX-Spectrum 48K | English |
| 2000229 | Machine Code Sprites and Graphics for the ZX Spectrum | - | English |
| 20328 | Machine Code Subroutines | ZX-Spectrum 16K | English |
| 17237 | Machine Code Teacher | ZX-Spectrum 48K | English |
| 8378 | Machine Code Test Tool | ZX-Spectrum 16K | English |
| 29079 | Machine Code Test Tool | ZX81 16K | English |
| 25831 | Machine Code Tester | ZX-Spectrum 48K | English |
| 21688 | Machine Code Toolkit | ZX-Spectrum 48K | English |
| 19699 | Machine Code Toolkit | ZX-Spectrum 48K | English |
| 24940 | Machine Code Tools | ZX-Spectrum 16K | English |
| 25832 | Machine Code Trace | ZX-Spectrum 48K | English |
| 41527 | Machine Code Tutor | ZX81 16K | English |
| 40770 | Machine Code Vertical Scroll | ZX-Spectrum 48K | English |
| 2000224 | Machine Code and Better Basic | - | English |
| 2000227 | Machine Code for Beginners | - | English |