Can I create places in Eidolon City for my character's business, or someplace they frequent?

Yes, you can. All we ask is that we keep common types of places to a minimum. For instance, while there are likely a ton of diners in the city, we have one listed because that's where significant people go. If there are too many places of the same type, it will be harder for people to get interaction there, where as if someone were to set an open scene in the one listed diner, then anyone could be likely to take it if their character can be hungry at that time. As such, we ask that if there are already two or three places of any type in play, please don't make any more!

When creating places to be put up for people in the game to go, try not to make anyplace too famous, or well known. If you want to create somewhere that's widely known and a fixture of the city (for example the Drake Hotel or the One More Round), it's not impossible--you'll just need mod permission for it. So ask!