Thanks for playing.
The upgrade should unlock the Karoo area for you to explore? Did that not happen?
We will be updating the itch build, we try to update it every 2-3 weeks with new content.
We haven't completely decided on pricing for steam but I can say it won't be expensive, probably around the $10 mark. We will also have regional pricing so cheaper depending on where you live.
The game still needs a LOT of work, so it will most probably not be on steam for quite a few months (at least 12 months... sorry). Hopefully you can hang in while we do our best to add lots more features, mechanics and content!