A free program for Android, by EraTraveler Studio.

You will get to play as one of the most famous historical characters: Caesar, Columbus, Newton, Khan, Joan of Arc, Einstein, Gandhi, Lincoln, Cleopatra, and many others. The game is based on real historical events and people, so you will be able to make history yourself, just by playing the game. You will be able to explore, conquer and build as you go along the different paths in the game. 

You can build your own empire as you go along the different paths in the game. 

In order to build your empire, you will need to research new technology, build your army, recruit soldiers, and conduct attacks.