4X

Civilization is a legendary strategy game by the legendary game designer Sid Meier. You must guide a small tribe to grow and become a great empire in competition with as many as six other tribes. You must make decision that affect exploration, war, diplomacy, city growth, and the discovery of new technologies, the results of which will ultimately define your empire and what it is capable of achieving.

CivNet is the final incarnation of the original game, enhancing the GUI, adding digital redbook audio, FMVs, and, of course, multiplayer via a number of network types.

Civilization IV is a historical-simulation game where players develop factions throughout the known history of mankind. Players build cities which produce the structures and units of the game and are the source of income and technological growth. As time progresses factions will discover new technologies which allow them to improve their cities and build more things. Each faction is led by at least one historical figure famous in history. Diplomatic relations between different factions are represented by interactions between these historical avatars.

Sins of a Solar Empire is a science fiction real-time strategy computer game developed by Ironclad Games and published by Stardock Entertainment for Microsoft Windows operating systems. Sins is a real-time strategy (RTS) game that incorporates some elements from 4X strategy games; promotional materials describe it as "RT4X." The game was released on February 4, 2008, its first content expansion titled Entrenchment was released as a download on February 25, 2009, and its second content expansion titled Diplomacy was released as a download on February 9, 2010.

Sid Meier's Alpha Centauri (SMAC) is the critically acclaimed science fiction 4X turn-based strategy video game sequel to the Civilization series. Sid Meier, designer of Civilization, and Brian Reynolds, designer of Civilization II, developed Alpha Centauri after they left MicroProse to join the newly-created developer Firaxis Games. Electronic Arts released both SMAC and its expansion, Sid Meier's Alien Crossfire (SMAX), in 1999.

Civilization II is the second game in the legendary strategy game series by the legendary game designer Sid Meier. You must guide a small tribe to grow and become a great empire in competition with as many as seven other tribes. You must make decisions that affect exploration, war, diplomacy, city growth, and the discovery of new technologies, the results of which will ultimately define your empire and what it is capable of achieving. Civ2 was designed for Windows from the ground up, and the "original" version is designed for Windows, not DOS.

Full name: Sid Meier's Civilization IV: Colonization It's a turn-based strategy game based on the Civilization IV engine. Essentially it's a remake of the original Sid Meier's Colonization. Apart from the graphics engine, very little has changed. The goal of the game is simple enough: colonise the New World, starting in the year 1492, and eventually declare independance. Your home nation won't like this so you'll have to fight a serious army before the final victory. It's a standalone game, it does not require Civilization IV to run.

Civilization is a legendary strategy game by the legendary game designer Sid Meier. You must guide a small tribe to grow and become a great empire in competition with as many as six other tribes. You must make decision that affect exploration, war, diplomacy, city growth, and the discovery of new technologies, the results of which will ultimately define your empire and what it is capable of achieving. The Windows incarnation of this game supports widescreen.

Sid Meier's Alien Crossfire is the expansion pack to Sid Meier's Alpha Centauri, a sci-fi themed turn based strategy game. It depicts human colonists of several different factions attempting to populate a planet in the Alpha Centauri system, struggling to survive the planet's harsh conditions, building new cities, discovering new technologies, and often clashing with eachother.

Civilization III is a turn based strategy game from Firaxis Games and Infogrames. The basis of Civ 3, like in the previous two, is building a civilization from a primitive tribe to a modern empire, developing cities, technology, and culture, and conquering weaker empires while making peace with stronger ones.