Rhye's and Fall of Civilization (RFC) is a "fan scenario" (mod) for the 2005 computer game Sid Meier's Civilization IV. It is an 'Earth simulator' that uses a variety of scripted events to mirror history much more closely than a typical game of Civilization. The name of the scenario references its core feature—the dynamic "Rise and Fall" of civilizations through time—and its creator, Gabriele Trovato, known as "Rhye" in the forums community.

Civilization IV is a 4X turn-based strategy computer game and the fourth installment of the Civilization series, and designed by Soren Johnson under the direction of Sid Meier and his video game development studio Firaxis Games. It was released in North America, Europe, and Australia, between October 25 and November 4, 2005, and followed by Civilization V.