From the introduction:
Character is a Game Master's tool for tabletop roleplaying
games, a mini game you can use to add depth to non-player characters, from brand new ones you're introducing for the first time or for established characters that you want to flesh out, to add some history and give motivations.
Plot IS Character can help steer you into new directions with characters. If you find yourself in a bit of a rut with NPCs, especially ones that act as antagonists to your party of player characters, then this game is for you.
Although this item is developed as a generic, universal tool to assist during game master preparation, it also was entered into the Solitaire RPG Challenge as a standalone "game". It is intended for solitaire use prior to play; it helps to generate unique and distinctive non-player characters.