Sure, here's a simple game implemented as a single HTML file using JavaScript:
Die Happy or Be Immortal
Choose your destiny:
Die Happy
Be Immortal and Sad
This game presents the player with two options: "Die Happy" and "Be Immortal and Sad". By clicking on either option, a corresponding outcome message is displayed using JavaScript's `alert` function.
Please note that this is a very simplistic implementation and can be further expanded and enhanced based on specific requirements.