What's with the "open alpha" thing? Good question! To be more clear about KarBOOM's current state and the fact that I have no idea what its future holds, I'm simply referring to it as an "open alpha". Hopefully the "alpha" makes it clear that KarBOOM's not feature-complete, and so I'd really appreciate suggestions from players! And "open" should suggest that anyone can play it. It's free.
I mean, if I release a version for free it stays free, but when KarBOOM is developed far enough I may be able to sell it for a little bit of money and get a little compensation for the time I put into it.