Sure! Here's an example of a simple murder mystery game implemented as a single HTML file using JavaScript:
Welcome Detective! Who do you suspect?
In this murder mystery game, the player is asked to choose a suspect from three options: Butler, Maid, and Gardener. If the player selects the correct suspect (Butler), they will be notified with a success message. Otherwise, they will be informed that the chosen suspect is incorrect.
Note that this is just a basic example and can be expanded upon to add more complexity and interactivity. The styling can also be enhanced further using CSS, and additional gameplay elements can be incorporated based on the requirements of the game.