Heroes of the Forgotten Kingdoms

This is a list of Dungeons & Dragons rulebooks for the Dungeons & Dragons (D&D) fantasy role-playing game, sorted by the edition of the game that they appeared in. This list does not include books designed for use as premade adventures.

The Dungeons & Dragons Basic Set was the successor to original Dungeons & Dragons and was released while TSR, Inc. was working on the Advanced Dungeons & Dragons set. This set was the beginning of the split into two separate games, driven by disagreements on the direction the game should take. The Basic set retained the simplicity and flexibility of the original game while Gary Gygax took Advanced Dungeons & Dragons in a more structured and complicated direction.

Initially it was expected that players would start using Basic edition and then graduate to Advanced Dungeons & Dragons. However, in 1981 the Basic Set underwent a complete revision and not long after this the Expert Set was released for the first time. All references to a progression from the Basic Set to Advanced Dungeons & Dragons were removed from the games and supplements as TSR, Inc. made clear that the expected progression was from the Basic Set to the Expert Set. From this point the D&D dichotomy became fixed and the Basic/Expert pair were considered a completely separate game from Advanced Dungeons & Dragons.

Advanced Dungeons & Dragons (AD&D) greatly expanded upon the rules and settings of the original D&D game when it was released in 1977. As such, this edition saw the publication of numerous books to assist players. The naming of the core books in this edition became the standard for all later editions.

In 1989, Advanced Dungeons & Dragons 2nd edition was published. By the end of its first decade, Advanced Dungeons & Dragons had expanded to several rulebooks, including three Monster Manuals, and two books governing character skills in wilderness and underground settings. Initially, the second edition would consolidate the game, with three essential books to govern Dungeon Masters and players alike. Periodically, TSR published optional rulebooks for character classes and races to enhance game play.

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