Halo Wars is an exciting strategy game based on the legendary Halo universe. In the Campaign, command the armies of the UNSC warship Spirit of Fire, with familiar and new UNSC units in its initial encounters against the Covenant, an alien coalition threatening to obliterate humankind.

With the guidance of Serina, a spirited artificial intelligence (AI) construct, direct legions of UNSC soldiers, Warthogs, Scorpions, and more, each group having its own strengths and uses in battle. Adventurous commanders can also call upon ancient Forerunner technology, if they are fortunate enough to find its hidden locations on the battlefield.