Looking for decent open-source Civ-clones

Anything based on CivII and CivIII, ie a non 3d Civilization-themed game.

I know of Freeciv, but i am not sure how it is going these days.
I also heard of Civ-Evo, but do not recall how it was at all (i probably dled it once but did not like it).

Any other open-source civ-clones there? :)