Will the other girls be released to the public one by one in the coming months or all in one go when the game is finished?
Viewing post in New growth stages for Amber comments
They'll be released to the public starting in November after more content has been added for supporters.
The reason there isn't much new public content right now is because of a hiatus a couple months ago and I made the whole game public because I don't want content to stay gated for too long. But the usual cycle is that new content is supporter first and becomes public a couple months after that. There will also be gameplay updates, which will release for everyone from the get-go.