As in previous versions, cities remain the central pillar of civilization gameplay. A city can be created in a desired place by a unit of settlers produced in the same way as military units. The city will then develop in population; produce units and buildings; and to generate research, prosperity and culture.  The city will also expand its borders with one or more tiles at the same time, which is essential for the use of land and resources. The expansion process is automated and oriented towards the needs of the city, but the tiles can be purchased with gold.   Civilizations can no longer act with technologies as in previous versions of the game, but civilizations can carry out common technological activities. Two civilizations at peace can form a research agreement that requires an initial investment of gold and offers both civilizations a certain degree of science as long as they remain at peace.  Prior to the PC version 188.8.131.522 of the game, civilizations were equipped with unknown technology after a number of uninterrupted rounds of peaceful relations. It is possible that a civilization signs a research agreement for the sole purpose of getting an enemy to spend money that could be used for other purposes; AI civilizations are programmed in such a way that they sometimes use this tactic before declaring war.  British actor W. Morgan Sheppard delivers the account of the opening films of the original game and its expansion packs, quotes about discovering new technologies and building tourist sites, as well as introducing the civilization chosen by the player at the beginning of each new game.
 In Civilization V, the player leads a prehistoric civilization into the future on a process map and attempts to achieve one of the various conditions of victory through research, exploration, diplomacy, expansion, economic development, government, and military conquest. The game is based on a brand new game engine with hexagonal tiles instead of the square tiles from previous games in the series.  Many elements of Civilization IV and its expansion packs have been removed or modified, such as religion and espionage (although they were reintroduced in later expansions). . . .