Here is the full list of all 16 Cursed Castilla (Maldita Castilla EX) achievements.
Destroy moura but fail to eradicate the evil from Tolomera
Find a moura tear
Find all moura tears
Save the Amadis of Gaul from flames
Invoke the lady of the lake
Be kind with the sirens until the end of the game
Reveal the statue of San Martin
Find out the mysterious gamusin people
Find Jean Raymond’s note
Eradicate the evil from Tolomera thanks to a pact with death
Eradicate the evil from Tolomera
Eradicate the evil and find out every secret from Tolomera
Finish the game using no continues
Finish the game with the fire sword equipped
Eradicate the evil in less than 50 minutes
Get all achievements!