EDIT:
I FORGOT TO PACKAGE SOME .dll FILES ON THE FIRST UPLOAD! :(((
I've been informed that on some windows computers the game does not work because it was incorrectly packaged.
I promise we did not make any changes to the game, this is just a repackaged version that doesn't crash on windows! DOWNLOAD THIS VERSION INSTEAD IF THE PRIMARY DOWNLOAD CRASHED ON WINDOWS:
https://www.dropbox.com/s/kkt41gq2mo4kcft/Space%20Defenders.zip?dl=0