Is it true that you need to get/buy the game with every new version that comes out? I've browsed the forums here a little and it seems some people are stuck playing older versions of the game? Is there an advantage (ie. newer version or future support) with either the direct from his website purchase or the humble bundle?

The game looks interesting enough to try. I don't want to get stuck with an old version though.

If you bought any version, you are entitled to any future versions. At the moment, we're just having trouble figuring out exactly how you get the update if you aren't HIB2 or 3 purchasers, but rest assured you will be able to update.

I bought the HiB version. Don't see a version number anywhere on the main screen but I'm playing anyway. Hard game heh. My arms get shot off a lot.

You're playing B25-1, it seems that the updates will come directly through the HiB page for people who got it through that (like me). Welcome to the community.