Not sure what I’m thinking here. Thinking back to the old days of code listings in magazines and thinking about the Game Engine I’m dabbling with.
Here are full sample games in a single html file. No external links to external libraries, no external media for graphics and sounds.

You can run it, look at the source, edit it to your hearts content.
If you come up with something then who knows, I could add it here.

Of course you dont need to type these in anymore. No amount of rose tinting in my glasses will make that sound fun.
Just copy and paste into a text editor, save as .html file and run it in your browser.