The Castle Map Pack is the third of the three DLC map packs for Halo 4. The bonus material contains three new maps: Daybreak, Outcast, and Perdition. The Castle Map Pack was released on April 8, 2013, and includes 9 new Achievements worth a total of 250 Gamerscore.
For those who own the War Games Seasonal Pass from buying it for 2000 Microsoft Points, or from the Halo 4 Limited Edition, the Castle Map Pack will available to play for free upon release; those without the War Games Seasonal Pass will be available to download it from the Xbox LIVE Marketplace for the cost of 800 Microsoft Points or $10.00 USD/£6.44GBP.
- Main article: Daybreak
Daybreak is set in a military facility on the backdrop of a mountain range.
- Main article: Outcast
Outcast is set in warrens and canyons on an alien world.
- Main article: Perdition
Perdition is set in an urban area.
- In the map "Outcast", a flying Darter from Halo Wars is present as a background.
- The Castle Map Pack is named after SPARTAN-IV Fireteam Castle, who were killed in action during the Second Battle of Requiem.
- The Castle Map Pack sports more vehicular based gameplay than the other map packs.
- The Prime emblem, which is included with the Halo 4 Limited Edition, is seen in the red and blue bases on Daybreak.