on this page, gotta buy the full version, but its only $2.99, a great deal for how much fun you get out of it, but its being updated pretty often, so the full version is a ways off
I dont think so, im pretty sure the browser version is the public demo by default, but buying the game will allow you to download the full version to your desktop. If youre on mobile though, I dont have any advice lol
You might be able to play it natively through the Itch.io desktop app. You can play some browser only games as an offline game, by using the desktop app.
