Republic: The Revolution is a video game produced by Elixir Studios and published by Eidos Interactive and for Mac OS X by Feral Interactive. The game is a political simulation in which the player leads a political faction to overthrow the government of a fictional totalitarian country in Eastern Europe, using diplomacy, subterfuge, and violence. Development of Republic was led by Elixir Studios, a company by founder Demis Hassabis, who had previously worked on simulation games for Bullfrog Productions and Lionhead Studios. Design of the game was ambitious, with the game experiencing media hype from Demis Hassabis' descriptions of the game as a highly detailed and realistic simulation of political dynamics. The game experienced several delays, leading to the restriction of the scope of the game's features and scale.

A government simulation or political simulation is a game that attempts to simulate the government and politics of all or part of a nation. These games may include geopolitical situations, the creation of domestic political policies, or the simulation of political campaigns. They differ from the genre of classical wargames due to their discouragement or abstraction of military or action elements.