I linked my Patreon account (5$ contributor) so I could get this game for free but it's still asking for 30$ or more.  The post on Patreon mentioned Brothel level but that does not appear to be an option.  What is the equivalent?  Don't have 30$ of disposable income right now to get this game.

You should be able to use the link at https://stationmasterdev.itch.io/stationmaster/patreon-access to get access to the build with your Patreon account.