Here is the full list of all 21 ITORAH achievements.
Explore the deepest parts of the Forbidden Ruins
Defeat 10 enemies in 10 seconds
Attempt to hit a chicken
Enter Chimali for the first time
Chop your way out of Aracan
Aquire the power to heal yourself
Follow the strange light
Cleanse Dhalia
Cleanse Tlalocan
Defeat Quetzalcoatl
Defeat Chantico
Defeat the Violet Witch
Finish the game
Max out your Health
Max out your Stamina
Max out your Heal Charges
Max out your Healing Power
Max out everything
Beat the game in under 10 hours
Beat the game in under 5 hours
Talk to every character