It's all out war against the computer, another person or via the internet! It's got EVERYTHING; humans, dragons, wizards, other creatures. Then you choose the map you want or have a randomly generated one made for you.
The difference between this and other Risk-type games is that you have to take into consideration you MUST have commodities to continue your army's growth. Therefore you must gather as much gold, wood, etc. to keep your army going strong and to continue to build it up. On top of that, you must conquer as many towns, castles and fortifications as possible before the turn limit runs out.