Awakening the Nightmare DLC Expansion is not included in the Season Pass. The Halo Wars 2 full game is required to play the expansion.

- Play as the Banished in an all-new single player campaign
- Battle against an ancient enemy, the Flood
- Play online with new multiplayer leaders, units, and maps
- Hold your ground in the co-op Terminus Firefight mode
- Support for 4K Ultra HD graphics and HDR on Xbox One X and Windows 10