The No. 1 real time WW2 strategy game to be played in multiplayer. Play for free online or without download on mobile! In Call of War, players take the reigns over a multitude of nations during the darkest hours of human history: The Second World War. They have to build up their cities, expand their countries, manage their economics, bargain with other rulers, spy their enemies, forge strong alliances and build a powerful army to prepare for the call of war. Similar to Supremacy 1914 players have a great strategic overview over a huge historical map, on which they can order their commands and see their armies move in real time.