Simple, but very cool and fun game :D +1
Just sent you an e-mail.
We've uploaded DRM-Free version to itch.ioHave fun! :)
Unfortunately we don't support Android version at this time and don't make new builds for it. So that's why it's free. But we plan back to this platform in future.
Game is only reques installed Steam. It's only one DRM tech that we use, because game uses Steam API (achievments, stats, cloud & workshop). You don't need broadband internet connection or something else. :)