| 23939 | 15th Edition of the IEE Regs Made Easy | ZX-Spectrum 48K | English |
| 11516 | Beamscan | ZX-Spectrum 48K | English |
| 11406 | Bricklayer 1 | ZX-Spectrum 48K | English |
| 19850 | Brickworker | ZX-Spectrum 48K | English |
| 30455 | Build That Tower | ZX-Spectrum 48K | English |
| 19853 | Building Price | ZX-Spectrum 48K | English |
| 23643 | Computer Aided Engineering | ZX-Spectrum 48K | English |
| 38689 | Controlo de Produção | ZX81 16K | Portuguese |
| 44861 | Decodificador de Cores para Componentes Eletrônicos | ZX81 16K | Portuguese |
| 25474 | Design 4 | ZX-Spectrum 48K | English |
| 23941 | Design 5 | ZX-Spectrum 48K | English |
| 38939 | Dimensionamento de Colunas | ZX81 16K | Portuguese |
| 13197 | Drainlayer 2 | ZX-Spectrum 48K | English |
| 23924 | Estimating | ZX-Spectrum 48K | English |
| 20108 | Estimators | ZX-Spectrum 48K | English |
| 13857 | Excavator/Drainlayer 1 | ZX-Spectrum 48K | English |
| 23942 | Fault Level | ZX-Spectrum 48K | English |
| 20138 | Finite Element Linear Static Analysis | ZX-Spectrum 48K | English |
| 18892 | Frame | ZX-Spectrum 48K | English |
| 12277 | Grid | ZX-Spectrum 48K | English |