This isn't really "retro gaming" but based on Chris Garrett's code...

I've continued to adapt Chris Garrett's http-get code into a very old idea I've mused over since 2006. The idea of hiding a retro webpages inside of existing ones. Commodore Markup Language. Back in 2006, Retro computer Internet connectivity wasn't nearly as strong as it is now. (Thanks Chris) Anyway, I've got a decent proof of concept working. The existing webpage is located at https://www.gunstar.one This CML page is hidden in the remarked source of that page and is parsed by the Commodore. I'm using Epyx Programmer's Toolkit for a development platform, but at the moment it runs fine in BASIC 2.0. Basic screen, border, text colors, and Hyperlinks are working correctly. Edit: Added direct access to the POKE command, so now sprites and sound are accessible.

More details on on my Github https://github.com/eightbitswide/CML