Halo Wars
58 Achievements
1200
82-104h
Xbox 360
Xbox One
Xbox Series
Key to Pirth
Completed Act II on any difficulty Details for this achievement will be revealed once unlocked
50
How to unlock the Key to Pirth achievement in Halo Wars - Definitive Guide
TheGearGuardian
TrueAchievements
TrueAchievements
This is story related and cannot be missed.
This unlocks after you complete Mission 7.
This unlocks after you complete Mission 7.
WhineyRabbit, mmartynn, Spellruler
Complete missions 4, 5, 6 and 7.