I'm considering creating a position in an online RPG where the responsibilities would mainly involve conceiving roleplaying-oriented events and plotlines and executing on them using developer tools such as the ability to create instances of NPCs/items and the ability to control NPCs. Examples of events/plotlines might be "ancient god of evil breaks loose from his prison and attacks the realm" or "upcoming marriage between offspring of powerful dynasties has political opponents trying to disrupt it".
What is the best job title for this sort of position?
The first thing that popped into my head was "customer experience associate", but this appears to have an established meaning in retail where it's a way of dressing up "salesperson". "Game master" positions in MMOs are generally helpdesk positions with no creative duties or authority. I want to select something that neither exaggerates nor undersells this person's level of responsibility.