Freeciv

Freeciv is a turn-based empire-building strategy game inspired by the history of human civilization. The game commences in prehistory and your mission is to lead your tribe from the Stone Age to the Space Age...

Forum for Freeciv for Android users: http://civland.org/android

Default game settings are based on Civilization II, but Civilization I ruleset exists.

Source:

Google Play descvription (Android)