4X Game

A style of complex strategy games that center around the ideas of:

eXplore (scouting out new territory)

eXpand (growing your settlements),

eXploit (fully utilizing your resources), and

eXterminate (attacking or even eliminating your opponents).

4X games are known to generally be long, complicated, and focus on multiple paths to victory, with heavy emphasis on technology, economies, politics, and warfare.