Pool of Radiance is a series of role-playing video games set in the Forgotten Realms campaign settings of Dungeons & Dragons. There are five games in the series, of which the first four are Gold Box titles. These are based on the Advanced Dungeons & Dragons rules, and were the first video games to use this rule set. The final game, Ruins of Myth Drannor, was developed by Stormfront Studios after a ten year hiatus and is a significant departure from the established style. The game was also the first to use 3rd edition rules.