Here is the full list of all 42 The Cursed Crusade achievements.
Clear the game on the "Nightmare" difficulty setting.
Find all the coffers!
Perform a 100-hit combo.
Perform a 50-hit combo.
Enhance all of your character's Skills to their maximum!
Enhance your character's Strength to its maximum!
Find all the Blood Crucifixes!
Enhance your character's Weapon Mastery to its maximum!
Dodge 30 Guard Breaks!
Master all the martial techniques!
Master the Mace and Shield technique!
Master the Spear and Shield technique!
Clear the game on any difficulty setting.
Master the Axe and Shield technique!
Master the Spear!
Clear "Hagia Sophia Basilica" on any difficulty setting.
Master the Two-Handed Sword!
Enhance your character's Armor Mastery to its maximum!
Master the Two-Handed Axe!
Defend Constantinople's civilians!
Master the Axe and Mace technique!
Acquire the power Fire Maelstrom!
Clear "The Capitolium" on any difficulty setting.
Enhance your character's Constitution to its maximum!
Master the Sword and Mace technique!
Master the Double Axe technique!
Enhance your character's Templar's Curse to its maximum!
Master the Sword and Axe technique!
Acquire the power Roaring Flames!
Clear "The Fall of Zara" on any difficulty setting.
Find the ninth Blood Crucifix!
Master the One-Handed Axe!
Master the One-Handed Mace!
Master the Sword and Shield technique!
Clear "The Road to the Peninsula" without losing any of the soldiers pushing the ballista.
Master the One-Handed Sword!
Master the Double Sword technique!
Master the Double Mace technique!
Acquire the power Purifying Fire!
Clear "Forest Roads" on any difficuty setting.
Deflect 30 attacks with the Deflection Counter!
Win the Tournament of Ecry.