Mod making tools are a variety of construction sets for computer role-playing games. These typically allow the player to design stories, monsters, and sometimes spells and artifacts that work in a particular game world.
An early mod making tool was the Bard's Tale Construction Set, released in 1991, which allowed users to create game designs in that series. Much more successful among early mod making tools was the 1992 Forgotten Realms Unlimited Adventures, from Strategic Simulations, Inc, which allowed users to construct games based on the game world that was launched with the Pool of Radiance game.
Later mod making tools include the Elder Scrolls Construction Set, which shipped with the Morrowind game; and Neverwinter Nights, which include the "Aurora Toolkit" that creates designs that run under a modified version of the Baldur's Gate engine.
