Comment by torginus
It does run without the browser, it's just that on Steam, people expect an executable.
And sorry for the lack of quality - this project was built by just one guy who did custom everything (art, engine, editor, writing, music etc.) - it's super impressive imo. I'm sure if you replaced the models and textures with better looking ones (at no increase of technical complexity), it would look better.
Having looked at just the trailer on steam, it does look impressive, especially for a one man effort.