Full list of all 50 Knights Contract achievements worth 1,000 gamerscore. It takes around 50-60 hours to unlock all of the achievements on Xbox 360.
Acquire the Scythe of Imperial Massacre
Defeat the witch Rapunzel
Defeat the witch Trendula
Attain the highest possible combo rating
Collect 100 Recovery Items
Land 100 Finishers
Force Faust to retreat
Defeat the witch Holda
Acquire the Scythe of the Assassin Queen
Defeat the witch Trude
Collect 10,000 souls
Upgrade a Witchcraft
Defeat 100 enemies
Defeat the witch Straeggele
Save Gretchen from enemy attack
Land a Finisher
Experience your first revival
Acquire a collection item
Defeat an enemy
Defeat the witch Verderinde
Defeat Faust
Defeat your true enemy
Beat the game on Page
Beat the game on Squire
Beat the game on Knight
Beat the game on Hexen Knight
Beat the game on Witchslayer
Acquire Spirit Cannon
Collect 100,000 souls
Perform a 30-hit combo
Perform 10 counterattacks while taking enemy attacks
Catch and defeat five enemies at once with Mag Mell's Rose
Defeat 200 enemies with Knight's Fury
Defeat 200 enemies with Witch's Embrace
Defeat 50 enemies with the help of Minukelsus
Acquire all Witchcraft
Acquire all equipment
Acquire all collection items
Defeat 1,000 enemies
Land 1,000 Finishers
Land 100 Perfect Finishers
Bash the same enemy into a wall five times
Pick up the same enemy five times
Repel an enemy's attack 10 times
Revive 50 times
Save Gretchen from enemy attack 50 times
Use Witch's Embrace when no enemies are present
Damage both yourself and an enemy with Witchcraft
Damage both yourself and an enemy with Witchcraft 10 times
Carry Gretchen around for a long time