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