3Game of War: Fire Age – $220 million
Owned by Machine Zone Inc., this action gaming app brought a whopping $220 million revenue.
Game of War: Fire Age can be really addictive due to its multi-player option.
Players can build and customize their own empire with armies and weapons, as well as make in-app purchases in order to conquer the King.
For $100, players will receive 28.000 Gold pieces.
