| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| Mad in Cashcais | Cascaismicro | 1986 | Portuguese | |
| Maldicao da Vila Sinistra, A | Pisc Soft | 1988 | Portuguese | |
| Marie Celeste | Lutecia | 1985 | Portuguese | Solution, Map |
| Matagal | ? | ? | Portuguese | |
| Menphis | Nemesis Informatica | ? | Portuguese | |
| Mina, A | ? | 1998 | Portuguese | Map |
| Mundo perdido da Terceira Dimensao, O | CPU |
1987 | Portuguese | |
| Mundo Perdido, O | ? | ? | Portuguese | |
| Mystery City | Loopdigital | 2020 | Portuguese | Solution |