Assassin's Creed III takes 20 to 25 hours to complete

Steven Masters, the Lead Game Designer of Assassin's Creed III, told GamersNET during a behind closed doors session that the singleplayer mode of Assassin's Creed III takes about 20 to 25 hours to complete. However, this time can vary depending on how many sidequests you play. Also, Masters told during the demonstration that the game contains 2,5 hours of Naval Battles (which were seen during the latest Gamescom trailer).