Haegemonia: Legions of Iron, or Hegemonia: Legions of Iron (different spelling in US English due to the root word "h(a)egemony") is a 3D real-time strategy game made by the Hungarian Digital Reality and is similar in many respects to Homeworld and Digital Reality's previous game, Imperium Galactica II. The game series uses many concepts originating from the Master of Orion series.