Which Assassin's Creed title is set primarily during the French Revolution?

Assassin's Creed Unity is the Assassin's Creed title set primarily during the French Revolution.

The game follows Arno Dorian, a French Assassin who operates in Paris during the late eighteenth century. Its story begins before the Revolution and continues through major years of political upheaval, including the storming of the Bastille and the Reign of Terror.

Unity emphasizes Paris as a dense, detailed setting, with recognizable locations such as Notre-Dame Cathedral, the Tuileries Palace, and the Palace of Versailles. It also introduced cooperative multiplayer missions in which players can work together as Assassins.

Assassin's Creed III is associated with the American Revolution, while Syndicate takes place in Victorian London. Assassin's Creed II focuses on Renaissance Italy, making Unity the specific answer for the French Revolution setting.