Freeciv 2.6

Freeciv has had a major release after three years of hard work. This great empire-builder has so many improvements I couldn't even begin to mention them. Rest assured that the game plays better than ever, so perhaps it's time to get a multiplayer-session together and have some fun! Remember that if you don't think the main game has enough options or a graphical style that suits you, you can change it up with rulesets, modpacks or new art and tilesets. Also, don't forget that the game can be played online in the form of Freeciv-web, complete with a WebGL-based 3D engine.

You probably need to click this image of Freeciv to notice all the little detail that hides beneath those flags. :)