is a landmark title in the history of handheld gaming, serving as the first and only full 3D open-world entry of the series for the PlayStation Portable (PSP) . Released in November 2009 by Ubisoft and developed by Griptonite Games, it occupies a unique space in the franchise as the bridge between the original Assassin’s Creed and Assassin’s Creed II . A Direct Sequel to Altaïr’s Legend