This game is awful, and you want me to tell my friends to play it!? No.
Make a good game, then people will play it, don't keep features back to extort platy.
It does save, but somehow it seems to fail for some people. We can't reproduce it at our end, so we have to blindly guess and try different solutions for now. We've added some checks and additional savegame method in the latest version, hopefully it should help.
Let me know if its still causing issues after a reload, I changed the graphics API, if so try low quality with F9.