Assassin's Creed: Revolutions is a sandbox-style action-adventure game developed by Ubisoft Montreal and published by Ubisoft. It is regarded as a spin-off from the main series, although the game's protagonist Nieto Caídose del Monarca is an ancestor of Desmond Miles. It was released on June 15, 2010 (USA), and globally on June 18, 2010.