Here is the full list of all 53 The Legend of Heroes: Kuro no Kiseki Ⅱ -CRIMSON SiN- achievements.
Raised all crafts of any one character to max level in the Märchen Garten.
Opened all orbment slots for all 15 characters.
Raised the Arkride Solutions Office rank to AAA.
Completed all (4SPG) quests.
Filled out the book notes fully.
Obtained all Hollow Cores (excluding Alter).
Played in all 4 of the school festival's performances.
Crafted 1 main weapon part using black steel.
Defeated the boss on Floor 9 in the Märchen Garten.
Completed the final chapter.
Completed Chapter 7.
Raised a Hollow Core to max level.
Achieved total damage of 100,000 or more.
Generated 200+ EX Chains.
Completed Chapter 6.
Played all 3 activities on Nemeth Island.
Completed Chapter 5.
Raised the Grey alignment to max level.
Used S Craft 250+ times.
Performed pre-emptive Shard Attacks 250+ times
Defeated 300+ enemies on the field.
Performed 500 actions during S Boost
Completed Chapter 4.
Defeated 1000+ enemies in either Command or Field battle modes.
Changed BGM via Marduk Support in the Märchen Garten.
Completed a chapter with an evaluation of S (excluding Prologue)
Completed Chapter 3.
Used the SCLM Chain and SCLM Support a combined 500 times.
Completed Chapter 2.
Defeated 500+ enemies in either Command or Field battle modes.
Completed Chapter 1.
Completed the prologue.
Opened the treasure chest in the conductive lock via hacking.
Resumed work as a Spriggan.
Earned all achievements.
Earned all achievements (excluding EX).
Raised the Law alignment to max level.
Raised the Chaos alignment to max level.
Raise the Law/Grey/Chaos level all to 5.
Raised all “Connect Stage” to max level.
Filled out the monster book fully (excluding EX).
Filled out the fishing notes fully.
Raised the gourmet rank to max.
Opened 150 treasure boxes (excluding Märchen Garten).
Collected all Arts Drivers (excluding EX).
Sent 20 gifts
Crafted main weapon parts using black steel for all characters.
Entered the sauna in the capital in Parts I, II, III + the finale, as well as the hot springs in Messeldam and Langport.
Viewed all movies.
Achieved a tactical bonus of 4.0 or more.
Defeated 100+ enemies with Quick Arts.
Used all 7 Dual Arts.
Cleared the game on Nightmare difficulty.