This game design document outlines the key elements needed to plan a new game, including an overview of the game idea, the target audience, gameplay features, character designs, and a production schedule. It recommends providing an executive summary, storyline, game requirements, and a statement sentence defining the game's title, type, intended platform, features, and objective. Details about the game's genre, benefits, competition, and what makes it unique are suggested for the positioning section. The features, flow, characters, interface, and engine are to be described, along with business considerations like team roles, deadlines, and budgets.