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.
Beat the “Frozen Mines” level.
Obtained all shards.
Found all Heart Pieces.
Found all Weapon Bags.
Found the Dark Armor.
Beat the “Aqueducts Area 2” level.
Found the Silver Claymore
Found the Steel Claymore.
Opened all level paths.
Beat the “Underground Temple” level.
Obtained all relics.
Found the Combat Armor.
Beat the “Dark Forest Area 2” level.
Play a game session for 2 hours.
Reach the final level blocked path.
Beat the “Aqueducts” level.
Beat the “Devil’s Peak” 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".