Here is the full list of all 36 GRANDIA HD Remaster achievements.
Defeat Gaia
Defeated Gaia Trent
Acquire the Spirit Sword
Defeat the Leviathan.
Defeat 2500 monsters
Defeat the Kung Fu Master.
Defeat the Lord's Ghost.
Collect all 18 Mana Eggs
Arrive in Alent.
Collect 250,000 gold
Escape the Grandeur and General Baal.
Acquire the Horn of Knowledge.
Become friends with Rapp.
Defeat Gaia Battler.
Defeat the Massacre Machine Twice.
Acquire the Medal of Wisdom.
Defeat 1000 monsters
Defeat the Klepp King.
Gadwin has joined the party.
Reach the top of the End of the World.
Find the Sacred Nectar.
You stole a train?
Defeat Ganymede.
Become adventurers with Feena.
Deliver Francois's letter to Clara.
Found the other stowaway.
You sank the Ghost Ship.
Find the first Mana Egg.
Do a good job swabbing the deck.
Defeat the Orc King.
Win 50 battles.
Level up for the first time.
Win your first battle.
Acquire the Spirit Stone.
Get your allowance from Mom.
Sue has joined the party.