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