Here is the full list of all 31 GOD WARS The Complete Legend achievements.
Cleared Chapter 4.
Cleared all requests.
Cleared a request for the first time.
Cleared Chapter 3.
Used a God Skill for the first time.
Maxed out all skill levels.
Unlocked every skill.
Leveled up a skill for the first time.
Cleared Chapter 2.
Used a Holy Skill for the first time.
Cleared Chapter 1.
Maxed out all job levels.
Used a Secret Skill for the first time.
Found all hidden treasures.
Found 30 hidden treasures.
Found a hidden treasure for the first time.
Maxed out all ally levels.
Obtained all treasures from wicker boxes.
Obtained a treasure from a wicker box for the first time.
Collected all equipment.
Collected 100 pieces of equipment.
Went shopping for the first time.
Unlocked every job.
Collected 1,000,000 leaves.
Collected 100,000 leaves.
Maxed out shrine levels.
Increased the shrine level.
Made an offering at a shrine for the first time.
Cleared 30 requests.
Cleared 10 requests.
Accepted a request for the first time.