In Assassin's Creed Unity, which historic event forms the game's setting?

The French Revolution forms the historical setting of Assassin's Creed Unity.

The game takes place mainly in Paris during the late 18th century, beginning in 1789 as the French Revolution unfolds. Players control Arno Dorian, an Assassin drawn into political violence, personal loss, and a conflict between the Assassins and Templars.

Unity depicts recognizable revolutionary locations and events, including the storming of the Bastille, the execution of Louis XVI, and the Reign of Terror. Its Paris is designed as a dense urban environment, with crowds, landmarks, and interiors supporting the game's emphasis on stealth and parkour.

The American Revolution is the setting of Assassin's Creed III, while the English Civil War appears in Assassin's Creed III's London-based downloadable content, The Tyranny of King Washington is a separate alternate-history story. Unity was released in 2014 and is also notable for introducing cooperative multiplayer missions for up to four players.