Campbell
Relaxed Intensity
The bigger constraint on Story Now play is not setting design, but situation design. You can have a very detailed backdrop as long as you provide for flexibility in the immediate situations Player Characters find themselves in. What is of paramount importance is the ability to somewhat unfixed about NPC motivations, exactly what's going on at a particular location and what any particular faction might be to right this minute. As a Story Now GM you should first and foremost be concerned with providing the players with room to make decisions for their characters, so you want to give yourself room to keep things flowing and focused on their dramatic needs.
A good example of the sort of setting design that works well for Story Now play is Blades in the Dark. It gives some general motivations for some named NPCs, but no specific plans. It gives a general sense of a faction's influence but does not detail all their holdings. It provides highlights of various regions of the city. It keeps things flexible so you can keep the pressure on the characters and tailor the situation to fit what they are trying to accomplish.
For what it's worth this is why I don't consider many of the games I run Story Now. I tend to be guided by dramatic needs in scenario design, but a lot more fixed in terms of details of the scenario during play when I run games like L5R or Exalted. Particularly when it comes to NPCs.
A good example of the sort of setting design that works well for Story Now play is Blades in the Dark. It gives some general motivations for some named NPCs, but no specific plans. It gives a general sense of a faction's influence but does not detail all their holdings. It provides highlights of various regions of the city. It keeps things flexible so you can keep the pressure on the characters and tailor the situation to fit what they are trying to accomplish.
For what it's worth this is why I don't consider many of the games I run Story Now. I tend to be guided by dramatic needs in scenario design, but a lot more fixed in terms of details of the scenario during play when I run games like L5R or Exalted. Particularly when it comes to NPCs.