My friends and I started building a game using PICO-8 to build a game. One of my students was telling me about another project by Lexaloffle. It is called, Picotron. I started messing with the preview version available on their site. It's been fun poking at it and seeing what it can do. I would say it's pretty neat and I've been having a blast.
It looks like it will cost $20 or so to have.
Here are some of the demos on Picotron:
This was my first expirment for an interactive page.