The handbook and the member door
A lot of lost evenings start with the idea that every simpcity link is the same door. They are not. simpcity.church is the public handbook: this page, the FAQ, and the long explanation of how the rooms work. simpcity.es is the member door. Log in there. Register there.
If someone sends a third domain, check it against this note before you type a password. A handbook can be public. An account form should be the one this site names. The Log in and Register buttons in the header are that check — both open simpcity.es.
Save the pair and stop. When a screenshot from last season fails to load, you already know which tab to open.