@islecat - If you follow the instructions outlined
on this page exactly, you will have one ongoing game with active play being in Bridgeport. Appaloosa will be a connected foreign world from which you may call upon other sims to visit, to move into Bridgeport by way of MasterController's Add Sim command, from which tourists may arrive, or to which your sim or any other you are playing may travel back for a new vacation. The game can only simulate one world at a time, so while active play is in Bridgeport, the Appaloosa world and its sims will be held frozen in a state of suspended animation just like the WA vacation worlds and Uni World are while they are not being played.
Any older saves, if you use Save As and change the name of the save on a regular basis as is always a good practice, will still be there but they are from the past and would be meant to be safe places to revert to if something goes wrong and not part of the timeline going forward.
