Here is the full list of all 43 Fuga: Melodies of Steel achievements worth 1,000 gamerscore.
Unlocked all achievements.
Reached level 50 with all characters.
Reached level 50 with a character.
Raised affinity to level 10 with 30 pairs.
Defeated the final boss with 12 surviving children.
Scrap fished 50 times.
Saved a friend in despair in Chapter 11.
Fully upgraded something.
Expanded all facilities to the max level.
Obtained information on 30 locations from the observation room.
Cleared Chapter 12.
Raised affinity to level 10 with an ally.
Cleared Chapter 11.
Won 10 elite battles.
Attained S rank in battle 50 times.
Obtained all comic pages.
Cleared Chapter 10.
Cleared Chapter 9.
Harvested 200 items from the farm.
Cleared Chapter 8.
Reached level 25 with a character.
Attained S rank in exploration 10 times.
Cleared Chapter 7.
Cleared Chapter 6.
Cleared Chapter 5.
Cleared Chapter 4.
Revitalized a depressed ally.
Won an elite battle.
Cleared Chapter 3.
Succeeded at the laundry.
Relieved status ailments by sleeping in the dormitory.
Delayed the enemy 100 times.
Expanded a facility.
Went exploring.
Cleared Chapter 2.
Harvested the farm.
Raised affinity to level 3 with an ally.
Succeeded at cooking.
Cleared Chapter 1.
Used a link attack.
Succeeded at scrap fishing.
Successfully made an upgrade.
Won a battle.