About Freeciv21

Freeciv21 is a free open source turn-based empire-building 4x strategy game, in which each player becomes the leader of a civilization. You compete against several opponents to build cities and use them to support a military and an economy. Players strive to complete an empire that survives all encounters with its neighbors to emerge victorious. Play begins at the dawn of history in 4,000 BCE.

Freeciv21 takes its roots in the well-known FOSS game Freeciv and extends it for more fun, with a revived focus on competitive multiplayer environments. Players can choose from over 500 nations and can play against the computer or other people in an active online community.

The code is maintained by the team over at Longturn.net and is based on the QT framework. The game supports both hex and square tiles and is easily modified to create custom rules.

Achieving success requires a balance between economic expansion, military strength, and technological development. Not only must you develop all three in concert to both expand and successfully defend your empire, but any of these four items may provide victory over your opponents:

As in other games of conquest and expansion, you are declared the winner by default once the last city and unit of every other civilization is destroyed.
Once technological progress has brought you into the space age, you may launch a spaceship destined for Alpha Centauri. The first civilization whose spaceship reaches the system wins.
In the absence of other means to determine victory, the game will end after 5,000 turns if no spaceships have been launched. The surviving civilizations are then rated, and the one with the highest score is the winner.
If playing a multiplayer game with only humans, victory can be declared based on diplomatic factors and other pre-set game rules.

Note

Spacerace Victory is set by the ruleset and thereby may not be not enabled for all games.