Assassin’s Creed Unity is an action-adventure game set in Paris during the French Revolution. The player controls Arno Dorian, an Assassin who seeks to uncover the forces behind the political unrest. The game introduces new weapons, including the Phantom Blade, a modified Hidden Blade with ranged capabilities.

Gameplay emphasizes stealth, parkour, and close combat, featuring updated free-running mechanics and a revised fighting system. The open-world setting recreates 18th-century Paris and includes historical events such as the storming of the Bastille and the execution of King Louis XVI. Unity also includes a cooperative multiplayer mode supporting up to four players.

Paris, 1789. The French Revolution turns a once-magnificent city into a place of terror and chaos. Its cobblestoned streets run red with the blood of commoners who dare to rise up against an oppressive aristocracy. Yet as the nation tears itself apart, a young man named Arno will embark upon an extraordinary journey to expose the true powers behind the Revolution. His pursuit will throw him into the middle of a ruthless struggle for the fate of a nation, and transform him into a true Master Assassin.