Here is the full list of all 36 GRANDIA HD Remaster achievements.
Defeat Gaia
Defeated Gaia Trent
Acquire the Spirit Sword
Defeat the Leviathan.
Collect all 18 Mana Eggs
Arrive in Alent.
Escape the Grandeur and General Baal.
Defeat 2500 monsters
Defeat the Lord's Ghost.
Acquire the Horn of Knowledge.
Defeat the Kung Fu Master.
Collect 250,000 gold
Become friends with Rapp.
Defeat Gaia Battler.
Defeat the Massacre Machine Twice.
Acquire the Medal of Wisdom.
Defeat the Klepp King.
Defeat 1000 monsters
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.