| Developer: | Maxis Software |
| Publisher: | Asmik Ace Entertainment |
| Released: | February 1991 |
| Genre: | Role-playing |
| Modes: | Single-player |
| Platforms: | Game Boy |
Mysterium is a first person dungeon crawl game developed by Maxis and published by Asmik Ace Entertainment in February 1991 for the Nintendo Game Boy.
The four reviewers for Electronic Gaming Monthly offered mixed opinions on the game.