Civilization is a turn-based strategy game in which you attempt to build an empire to stand the test of time. Explore a new land, research technology, conquer your enemies, and go head-to-head with history's most renowned leaders as you attempt to build the greatest civilization the world has ever known. See the marvels of your empire spread across the map. Settle in uncharted lands, improve your surroundings, build new districts, and see your cities – and your civilization – prosper. Unlock boosts that speed your civilization's progress through history. To advance more quickly, use your units to actively explore, develop your environment, and discover new cultures. Interactions with other civilizations change over the course of the game, from primitive first interactions where conflict is a fact of life, to late-game alliances and negotiations.