Full list of all 38 Die for Valhalla! achievements worth 1,000 gamerscore. It takes around 10-12 hours to unlock all of the achievements on Xbox One.
Kill Overlord
Kill Troll
Unlock all standard clans
On the upgrade screen, waste all your moves on empty spaces
Kill Monstrous Spider
Kill Yog Sothoth
Collect 25 skills on your Valkyrie profile
Only go right in one level
Kill 200 enemies with barrels
Complete level as a Skald without sending anyone to Valhalla
Complete level as a Volva without sending anyone to Valhalla
Complete level as a Thrall without sending anyone to Valhalla
Use your Viking's ultimate ability 50 times
Finish a level with a 100% hit ratio
Complete a level as a Valkyrie without possessing any Vikings
Complete level as a Jarl without sending anyone to Valhalla
Reach 1000 points in any stat
Finish a level without getting hit
Deal 100,000 damage in a single level
Perform 100 Perfect Summons
Deal 1000 damage in a single hit
Collect 15 skills on your Valkyrie profile
Use 10 different Vikings to kill enemies in a single level
Perform 20 Perfect Summons
Reach 500 points in any stat
Use your Viking's ultimate ability 20 times
Kill an enemy while possessing another enemy
Collect 1,000,000 glory
Perform a Multikill 100 times
Kill an Enemy as a Trap
Successfully block enemy attack 100 times
Kill 500 enemies
Complete level as a Warrior without sending anyone to Valhalla
Successfully block enemy attack 20 times
Complete level as a Berserk without sending anyone to Valhalla
Collect 100,000 glory
Complete level as an Archer without sending anyone to Valhalla
Kill 20 enemies with one Viking