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