It is Hammer of the Gods, so there hardly is anything more to say. Choose your race from humans to dwarves to elves to trolls, and conquer the rest! Raid, ransack and conquer thine enemies, and let them feel the wrath of the vikings, while you smash the saxon knight's head in with your troll hero with his gigantic log. Or reduce them to a pile of dust with your fire giants. On the non-historic maps, explore, colonize and conquer, just to have your best unit stack be killed by a sallying force of the nearest castle, while trying to fulfill the task Thor gave you. Very annoying, and utterly satisfying. Just get this game already.
