It doesn't run well on my browser, but I can't find any download button
there is a download on the ITCH.IO app, but this game doesn't run at all as a downloaded game throwing an error message as follows:
Unable to parse Build/Webgl.framework.js.gz! This can happen if build compression was enabled but web server hosting the content was misconfigured to not serve the file with HTTP Response Header "Content-Encoding: gzip" present. Check browser Console and Devtools Network tab to debug.