Here is the full list of all 46 Romancing SaGa -Minstrel Song- Remastered achievements.
Defeated Saruin after proffering up all the Fatestones.
Completed the game with one of the eight protagonists.
Defeated Saruin.
Defeated Death.
Defeated Schirach.
Had Aldora join the party.
Had Monica join the party.
Had Flammar join the party.
Had Marina join the party.
Had Schiele join the party.
Had Captain Silver join the party.
Reached the 1000th level of Purgatory.
Listened to all the Minstrel's stories.
Placed all the spirits on the throne in Faerie's Groves.
Reached class level 6 for the first time.
Received Mirsa's armor.
Ushered all passengers to safety.
Expelled Soulgutter.
Defeated the Jewel Beast.
Increased one of a party member's attributes to 70 or greater.
Obtained the Ice Sword.
Performed a five-person combination.
Synthesized a spell.
Upgraded or enhanced a weapon or piece of armor.
Met a character in the Netherworld.
Received something from Death at a terrible price.
Activated all vortices.
Earned the right to call yourself a legendary class.
Increased three shop levels to their maximum.
Completed the orchard event in Altours.
Received the Ruby of Fire.
Received the Aquamarine.
Received the Topaz of Earth.
Received the Opal of Wind.
Received the Diamond of Light.
Received the Diamond of Darkness.
Received the Moonstone.
Received the Obsidian Sword.
Received the Emerald of Evil.
Received the Amethyst of Visions.
Rescued all people fleeing from the Aurefont mines.
Declined the title of Honorary Knight.
Defeated the dragon knight with Neidhart.
All characters were referred to as "Warriors of Nisa" in Nisa Cavern.
Found the treasure.
Said the wrong password and met with the Game Over screen.