eric5h5: Q: Why does it cost money?
A: It took some effort to make.
They should either finish the game that people already paid for first or they should provide it free to everyone who already supported the developer by buying the game. It is fine to make it an extra cost thing for anyone who hasn't already purchased the game, but not to demand more money from people who already paid for the game. At least provide a code to everyone if they think some people will want to give them extra money.
This really pisses me off. I'm beginning to see that the "never early access" people have just been through a few more rounds of "this developer seems decent... never mind" than I have. I've recommended the game a few times despite it being early access and regret it. This kind of thing is why it makes more sense to wait until games are on sale for $2 rather than then try to support the developer. If you support the developer, they will just say "ha, a sucker, give me more".