Here is the full list of all 65 Asura achievements.
Finish the game in Asura Difficulty.
Clearing a run without consuming any meat or potions.
Select all Mantra Shastra
True ending
Finish the game in Rakshas Difficulty.
Scavenge 100 enemies.
Forge all items.
Forge all items in a single run.
Destroy 100 pots.
Finish the game in Shaitan Difficulty.
Cast a shield spell.
Absorb 100 enemies.
Unlock 10 Shastras.
Reach Level 10.
Clear an Arena room.
Open a Demon chest.
Clear a guardian room.
Scavenge 25 enemies.
Open an enemy chest.
Equip item and fill the slots in inventory including consumables.
Absorb 25 enemies.
Destroy 25 pots.
Successfully cast an active skill in the game.
Forge an item.
Clear a room of enemies.
Kill all bosses!
Finish the game only with default weapons.
Absorb 1000 enemies.
Collect 15,000 gold.
Scavenge 1000 enemies.
Destroy 1000 Pots.
Defeat the boss without killing any other enemy.
Complete the game without taking any damage.
100% the game.
Purchase an item from the store on discount.
Purchase every single item from the store.
Collect 500 gold in a single run.
Reincarnate
Unlock 50 Shastras.
Unlock all Shastras.
Select all Yodha shastra in a run.
Select all Dhanush Shastra
Select all Bal Shastra.
Kill all champs!