If I may make a suggestion here, you may want to consider making the updates smaller, chunk-sized downloads to patch into currently existing installs of the game, instead of having people re-download the entire game each time. Right now that's no real issue, what with the game being "just" 1.4GB in size, but as your development continues, the game
will get larger and thus more cumbersome for everyone to download, be they us filthy pirate scum, or your glorious backer master race.
I seriously doubt you'll ever end up going Grandma's House with this game (for so many obvious reasons
) but it might still be worth emulating the update methodology of that game's dev.
Food for thought, ya know?
-Mal