Azad

The game Azad is based on Ian M. Banks novel "the player of games".
Each player tries to get civilisation points with his tribes by building villages, towns and a metropolis. Each tribe has to earn ressources to support the villages and build new tribes.
Depending on the area the tribe moves, the attributes (power, movement, ressources) of each tribe changes and each player has to take a look at the enemy tribes and defend their own territory, before they take control of your ressources and cities.