Heyya! I'm very interested in playing the game, seeing as I've enjoyed the demo, and I would love to experience the new alpha3 update! However, I have no knowledge regarding how itch.io works, and seeing how often the game is being updated I'm worried that by spending my money now I will be forced to buy the product repeatedly. Does buying the alpha now get me access to its future versions, or is it a one-time thing only?