1: What with girl in the blueprints menu...?
That's you. We all look the same right now.
2:Can you save?
The world is always saved. In single player, you just respawn every time you run but the changes you make should still be there.
3: If i get this game now will all the next update be free?
If you buy the game then updates are free. If you download the game for free and never pay then it will still cost money when the game reaches alpha.
You can read more about what "alpha" means here:
http://mythruna.com/forum/index.php?topic=862.0
