why is this game $100 USD?
It's not. That price is there to deter people from buying the game. The game is not meant to be sold as a standalone game yet. It's meant for people that want to be part of the development process and play the builds as they get developed. If you want access to it, you'll have to support the game on Patreon.
Very good... I'm at a low start, but my friend, are there many people involved in the development and bug fixing and so on? I'm not arguing about the price, it's your decision. But, I think if you reduce it (the price), then the (development) process will go much faster. Anyway, the game has high potential, aaaaaaaaaand I hope that you have everything under control.
BRGDS