Dunno if there's any more development coming on this... I'm quite enjoying it, but I had a crash to desktop when I went to turn off auto aim in the menu during a game. That wouldn't be an big problem except that I lost two hours' worth of unlocks.
You might want to save progress at the end of every run/wave/unlock, instead of only on graceful exit.
So sorry to hear that! the game is under active development, lots of work is going into the full release on steam but I will be updating the demo soon
The progress does save at the end of a run so its likely something else - there is a reset save file button on that page which is a huge oversight on my part if that can be pressed accidentally I'll see what I can do to make sure that can't happen
