Here is the full list of all 29 Odallus: The Dark Call achievements.
Completed the game.
Beat the “Frozen Mines” level.
Obtained all shards.
Found the Dark Armor.
Opened all level paths.
Found the Silver Claymore
Beat the “Aqueducts Area 2” level.
Play a game session for 2 hours.
Beat the “Underground Temple” level.
Obtained all relics.
Found the Steel Claymore.
Found the Combat Armor.
Beat the “Dark Forest Area 2” level.
Reach the final level blocked path.
Beat the “Devil’s Peak” level.
Beat the “Aqueducts” level.
Beat the “Dark Forest” level.
Beat the “Town” level.
Obtained 10.000 orbs (total) in a single game.
Completed 100% of the game in normal mode.
Spend 6.000 total orbs on the merchant.
Found all Heart Pieces.
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Beat the entire game only using Haggis' Sword.
Beat the entire game only using Hunting Clothes.
Found all Weapon Bags.
Completed the game in less than 2 hours.
Completed the game in "Veteran Mode".
Completed 100% of the game in "Veteran Mode".