The download for dragonsweeper1.0.0.zip isn't working for me. I can download the file, but when I try to play index.html it just shows colorful bars but never goes to the start screen :(
You’ll need o run a local webserver for it to work. But it’s an old version anyway.
You can give a single-file version I’ve made for myself a try, it should work by just opening it in a browser.