0 A.D. is a historical real-time strategy open source game focused on the years between 500 BC and 500 AD. 0 A.D, which will remind you of Age of Empires. The game is about economic development and warfare. The 0 A.D. team aims to deliver an experience that is refreshingly innovative but at the same time familiar, focusing mostly on the military aspect of real-time strategy. The game will pursue a strong sense of historical accuracy without damaging gameplay. It also aims for a high degree of replay ability by being easily moddable and the formation of a large online community. The player will have to build a city and an army following the rules of standard real-time strategy games, collecting resources and constructing buildings. The game will include multiple units and buildings specific to each civilization. It will include both land and naval units.