Rise of Nations: Thrones and Patriots is the official expansion pack to the real-time strategy video game Rise of Nations. The game is the second in a series of Rise of Nations games by Big Huge Games. Thrones and Patriots had its premiere release for Microsoft Windows on April 27, 2004 in North America, and was later bundled up with Rise of Nations as the Gold Edition, which was released for Windows on October 28, 2004, and for Mac OS X in November 2004. Rise of Nations: Extended Edition was released on Steam on June 12, 2014 and includes both the original game and Thrones and Patriots with updated graphics and Steamworks integration for multiplayer.

Rise of Nations is a real-time strategy video game developed by Big Huge Games and published by Microsoft Game Studios in May 2003. Designed as a fusion of concepts from turn-based strategy games with the real-time strategy genre, the game's development was led by Brian Reynolds, who founded Big Huge Games following his involvement in the development of the turn-based strategy games Civilization II and Sid Meier's Alpha Centauri. In contrast to previous historical real-time strategy games, Rise of Nations is based on the entirety of history, taking place from the ancient era to the modern age, and features eighteen civilizations, playable across eight ages of world history. The game features several innovations on the real-time strategy genre, introducing novel features such as territory and attrition influenced by the turn-based strategy genre.