When I do zero prep, I lean into the players. "Who are you? What do.you do? What do you desire?" Then as they actually build characters, I roll some dice on tables from Shadowdark and other sources. Combined with their answers, I have a starting point.
From there it's just riffing. If we hit a wall, I roll on a table and incorporate the results to move things forward. Otherwise, players should drive the action.
From there it's just riffing. If we hit a wall, I roll on a table and incorporate the results to move things forward. Otherwise, players should drive the action.