The Forges of Corruption Expansion Add-on for Warhammer 40,000: Boltgun has 9 achievements.
Complete Forges of Corruption on The Emperor Protects Difficulty
Complete Forges of Corruption on My Armour Is Contempt Difficulty
Complete Forges of Corruption on Emperor's Mercy Difficulty
Complete Forges of Corruption on Exterminatus Difficulty
Defeat a Helbrute
Find all secrets in Forges of Corruption
Complete Horde Mode on any difficulty
Complete Horde Mode on Emperor's Mercy Difficulty
Complete Horde Mode on Exterminatus Difficulty