Fans of killing things by clicking on them might want to check out the WarChiefs demo released overnight, offering a sample of Ensemble Studios' expansion pack for Age of Empires III.
Consisting of a campaign map and a skirmish level, the demo (517MB) allows you to play either as the German or Iroquois Confederation Native Americans. The full expansion adds two other Native American civilisations including the Sioux Nation.
Meanwhile, the full campaign that comes in the box will consist of 15 missions that continue on from the original game, with enhancements made to European civilisations, new units and various other additions.
Age of Empires III: the WarChiefs is due out later this year.