The game is based on an entirely new game engine with hexagonal tiles instead of the square tiles of earlier games in the series. In Civilization V, the player leads a civilization from prehistoric times into the future on a procedurally generated map, attempting to achieve one of a number of different victory conditions through research, exploration, diplomacy, expansion, economic development, government and military conquest. The game was released on Microsoft Windows in September 2010, on OS X on November 23, 2010, and on Linux on June 10, 2014. Sid Meier's Civilization V is a 4X video game in the Civilization series developed by Firaxis Games.