| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| Magic Mansion | Denise Sawicki | 1990 | English | |
| Misadventure of the Holy Grail, The | Michael Detlefsen | 1989 | English | |
| Mission's End | L. R. Nogg | 1992 | English | |
| Mold: Deep Space Awakening | Declan Stanley | 1990 | English | |
| Mop and Murder | Brad Friedman | 1991 | English | |
| Multi-Dimensional Thief, The | Joel Finch | 1991 | English | Solution |
| Murder at the Folkestone Inn | Anne Laughlin | 1993 | English | |
| Murder of Jane Kranz, The | Christian Andersen | 1992 | English | Solution |
| My First Stupid Game | Dan McPherson | 1996 | English | Solution |
| Myopia | Quentin D. Thompson | 1996 | English | Solution |
| Mystery Science Theater 3000 Presents "A Fable" | Graeme Cree | 1996 | English | Solution |
| Mystery Science Theater 3000 Presents "Detective" | C. E. Forman, Graeme Cree | 1995 | English | Solution |