I found a funny easter egg in Cultures. I was surprised that I found it, as I am usually not very good at finding easter eggs on my own. But weee! Found an easter egg all by myself for once.

On the main menu of Cultures 1, click on the heart with the arrow through it in the background. You'll get a very special secret mission!

Extra little hint: Try attacking some of the people you meet for another special easter egg message.