The game "Forgotten Realms" is a fantasy strategy game set in the role-playing world of the same name. Since this game is not known as a standalone board game but rather the world "Forgotten Realms" is a setting for many Dungeons & Dragons adventures, it might be a misunderstanding. It's possible that it's a specific board or role-playing game based on the "Forgotten Realms," but without more specific information, a precise guide cannot be provided. If you would like information on an existing board game in this world, such as "Lords of Waterdeep," let me know so I can elaborate on those specific rules.
