A computer game with optional PvP (battle.net) abilities. Highly addictive. It has regular levels (will take you a few years to
beat them all unless you play regularly) and also extended 'Dark Portal' levels. You can choose to play as Humans or Orcs. The Dark Portal levels regularly feature NPCs, while these only appear from
time-to-
time on the basic levels.
Available are custom maps, which allow you to play only one level of any given situation. Some even let you upgrade for
free! If you have
Map Editor, you can create and use your own maps.
Until you get far enough in the game, it can be really boring. However, once you get the hang of armies and using
Death Knights, Mages, etc, it is very easy to enjoy.
Went on sale for about $35
CN three years ago. Is now considered sadly outdated.