How to get Democracy 3 on desktop after buying it on steam

Is there a way I can get the desktop version of Democracy 3 (without DRM) if I can prove that I bought the Steam version? My Chromebook doesn’t run Steam, but I would still like to play Democracy 3 on my Chromebook. I got the game on Steam and really enjoy it, but I do not want to buy it again just to play it on my Chromebook. Thanks!