tested on Linux in Chromium and Firefox, and played in Chrome on macOS and on an Android phone. Not yet tested: Safari, iPhone, iPad.
I wasn’t even going to post this, but I clicked through to the game and it loaded instantly on my iPhone Air. I know it’s a tiny game by today’s standards. But fuck, man. This thing took a hot minute to load on my old HP Pavilion back in the day. Plays smooth as butter even in a mobile browser now.