Full list of all 30 Bloodforge achievements worth 400 gamerscore. It takes around 10-12 hours to unlock all of the achievements on Xbox 360.
Be the last thing Balor ever sees
Splatter Wodan's skull across the altar
Break Cailleach's heart
Make the prophecy come true
Kill the messenger
Take control of Fate
Destroy 10 deadly warriors of the gods
Tear 25 enemies to pieces
Kill 5 enemies while completely enraged
Discover the power of magic
Ingest 25 runes of power
Gruesomely kill an enemy while completey enraged
Use 5 different attack moves during an enemy encounter
Perform a perfect Rage Kill
Use the crossbow to link two attack chains together
Kill 10 enemies while they are bound with Crystals
Perform a 75-hit combination attack
Defeat a Risen Fomoiri Tank without being hit.
Obtain 3 consecutive perfect battle ranks
Defeat a challenge of the gods
Challenge a friend
Decimate a friend's challenge
Destroy 10 friend's challenges
Hold the top rank amongst all friends on 3 battles
Complete all challenge arenas
Collect all Rune Attacks
Collect all weapon upgrades
Collect all health and mana upgrades
Allow Balor to kill 15 of his own troops
Resurrect Aerten 10 times.