The Lord of the Rings: Conquest is a 2009 action game developed by Pandemic Studios and published by Electronic Arts. It is derived from The Lord of the Rings film trilogy, and borrows many gameplay mechanics from Pandemic's Star Wars: Battlefront games. The game allows the player to play as both the forces of good and evil, but unlike The Lord of the Rings: The Battle for Middle-earth, the latter option is based around Sauron stopping the One Ring from being destroyed and using it to regain his lost power.

Pandemic was aided by Weta Digital in developing the game. They provided many of their digital models, including the fell beasts. Pandemic also used elements that were cut from the films, and have taken inspiration from J. R. R. Tolkien's original fantasy series, such as a level based loosely around Balin's conquest of Moria, in which Gimli attempts to retake the dwarven city from the orcs. Some inspiration was less direct: the armies of Rohan and Gondor decide not to attack Minas Morgul in the novel, but a level in the game is based on what might possibly have happened if they had.