The 4x genre is a sub-genre of strategy that enacts the Explore, Expand, Exploit and, Exterminate gameplay mechanics. It is a core element of turn-based and real-time strategy games. Gameplay revolves around building an empire by constructing buildings to collect resources to grow your economy. As well as increase your influence and social standings with neighboring civilizations to become allies or enemies. Mechanics become more in-depth the grander the strategy.