instead of making itself fit the screen's height it makes it self fit the width, causing most to fall outside the screen.

Most of what falls outside the screen? Can you post a screenshot for me?

Thank you for the bug report!

Also, is this with the in-browser version, or have you tried with the standalone version?

the browser version.

the game scales in such a way that most of it falls outside the browser-window.

can't post a screenshot from this computer though.

I recommend the downloadable version for the best experience, but if you must use the in-browser one, you can click the fullscreen button (the far-right blue button at the bottom) and then the awkward window size won't get in the way.

I don't have direct control over how the embed happens though, so I can't improve that part, sorry.