FreeCol

Free!

FreeCol is a turn-based strategy game based on the old game Colonization, and similar to Civilization. The objective of the game is to create an independent nation.
You start with only a few colonists defying the stormy seas in their search for new land. Will you guide them on the Colonization of a New World?

FreeCol is mostly programmed in Java and should thus be platform-independent. In practice, it is known to run on Linux and Windows, as well as Mac OS X (with some limitations)