Here is the full list of all 39 The DioField Chronicle achievements.
Complete a Character Quest.
Defeat a Gigas.
Revive an incapacitated ally.
Purchase an accessory.
Complete a Sub Quest.
Defeat 5 or more enemies at once.
Acquire a skill on the Skill Tree.
Purchase a weapon.
Acquire an ability.
Acquire a treasure chest.
Complete chapter one.
Complete chapter two.
Complete chapter three.
Complete chapter four.
Complete chapter five.
Complete chapter six.
Complete the game.
Develop a weapon.
Conduct Magilumic Orb research.
Use the Battle Log.
Defeat a Salamander.
Defeat a Coeurl.
Defeat an Ouroboros.
Defeat a Skeletal Dragon.
Spend 100,000 guld.
Acquire 1,000,000 guld.
Defeat 100 enemies.
Defeat 500 enemies.
Deal 1,500 or more damage with one attack.
Recruit Donovar, Chappleman, and Zoruaq.
Acquire 25 Blue Fox badges.
Unlock 4 Engravings for any Magilumic Orb.
Collect 15 types of weapon in a category.
Acquire 7 skills for any unit type.
Acquire 10 bonus rewards from missions.
Acquire 50 bonus rewards from missions.
Acquire 100 bonus rewards from missions.
Raise a character's level to 30.
Raise a character's level to 50.