Here is the full list of all 29 Odallus: The Dark Call achievements.
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.
Found the Dark Armor.
Completed the game.
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Found all Heart Pieces.
Beat the “Frozen Mines” level.
Found all Weapon Bags.
Obtained all shards.
Beat the “Aqueducts Area 2” level.
Found the Silver Claymore
Opened all level paths.
Obtained all relics.
Beat the “Underground Temple” level.
Reach the final level blocked path.
Found the Steel Claymore.
Found the Combat Armor.
Beat the “Dark Forest Area 2” level.
Beat the “Devil’s Peak” level.
Play a game session for 2 hours.
Beat the “Aqueducts” level.
Beat the “Dark Forest” level.
Beat the “Town” level.
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".