So I have a few drafts of this, but I'll start with the final one and then go through the process of how I got here. The working title for my project is Project Legend.
Project Legend is a location based game that is centered around New York's urban legends and spooky stories. The object of the game is stop the city from being taken over by the things that go bump in the night by solving quests. Find clues around the city and solve puzzles to complete these quests.
The stories are true. Stop the world from finding out.
Project Legend is a game that takes the player on a journey around New York through the lens of its urban legends. Search for clues in your neighborhood and solve puzzles in your quest to stop the things that go bump in the night from taking over.
Notes from Developing the Pitch
Purpose of the game: Stop the subjects of the urban legends from destroying New York
Keywords and other points of game play: augmented reality, location based, puzzles