Demon Crusade features turn-based battlegrounds, which can be cooperative and include a partner. The player and their partner collaborate, using tactical thinking and strategy to bring down large groups of enemies. Everything from unit formation to flanking are included in the mechanics of these battles. The AI in Demon Crusade is advertised as being complex and challenging, with no two fights being truly the same. Enemies learn from player strategies and field complex decisions and maneuvers of their own. A player’s ability to defeat foes rests in tactical skill, more than anything else.