On Facebook, social strategy games based on the classic online game Travian have turned into a booming business for developers like Kabam. Roman Empire is iFree Studio's attempt to bring the formula mobile, where the format faces certain challenges. Mobile handsets generally can't offer quite as much screen real estate as the average PC screen, and strategy games frequently revolve around carefully arranging detailed building icons on a series of maps. Roman Empire has removed this aspect of these games entirely, in favor of an interface that is almost entirely text-only.