The single-player campaign consists of 20 levels, which each level being unlocked after the previous level has been completed. Unlike traditional campaigns in strategy games, levels are completely disjoint from one another, with no "carry over" from one level to the next. Instead, for each level, the player is provided with a fixed set of units (at a certain experience level) and items. The levels are tied together by a brief (but humorous) story which revolves around Maal, the protagonist, and his quest to discover the true nature of the threat to his homeland.