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Emperor: Battle for Dune is a Dune computer game, released by Westwood Studios in 2001. It is based in Frank Herbert's science fiction Dune universe.

It is the third real-time strategy game set in the Dune universe, following its predecessors, Dune II and Dune 2000. While Dune II was a totally distinct story to that of Dune, and Dune 2000 was a remake of Dune II, Emperor is a direct sequel to the previous games. In particular, it is a sequel to Dune 2000, carrying on from where it left off, with several of the characters and actors returning.

Like Dune 2000 and many of the other Westwood games that came before it, Emperor features cut scenes filmed with live actors and produced with professional-class visual effects. It also used a 3D engine for in-game play, being the first Westwood Studios game to do so.