In Assassin's Creed: Unity, players take control of Arno Dorian, a young man born to an Assassin father but adopted by a Templar family, and guide him through the streets, sewers and catacombs of Paris as he seeks to expose the real forces behind the impending French Revolution. Unity features substantial updates to the franchise's combat, parkour and stealth systems, and it includes a brand-new co-op multiplayer mode. The Paris of Unity is rendered in greater detail than any city in the history of the franchise, with a true 1:1 scale, seamless building interiors and AI crowds that can number in the thousands. Gamers use the updated parkour system to navigate this bustling metropolis, with new options to dash over, under or around objects, and leaps into conveniently placed haystacks largely removed in favour of new controlled descents. Arno can blend in with crowds to remain anonymous, but the new crouch mechanic and the ability to take cover behind any object means players have more ways to stay hidden than before. If discovered, gamers can take advantage of a new combat system and employ a series of attacks, dodges and parries to dispatch their foes. The Assassin's Creed: Unity features a customization system that lets players tailor Arno to their preferred play styles, with more than 200 items and accessories designed to improve stealth, increase defence, and upgrade attack power. The new co-op multiplayer mode exists alongside the single-player story and finds two-to-four gamers joining forces to pull heists, prevent executions, assassinate Templars and take on a variety of other dynamic missions specifically designed to require the participation of a diversely skilled set of Assassins.