Here is the full list of all 51 Crystal Project achievements.
Have a party member reach max level.
Acquire a Summon.
Master the Reaper class.
Master the Nomad class.
Master the Weaver class.
Obtain a Salmon companion.
Discover 12 Crystals.
Obtain an Owl companion.
Master the Samurai class.
Master the Valkyrie class.
Master the Ninja class.
Master the Assassin class.
Master the Dervish class.
Obtain an Ibek companion.
Discover 7 Crystals.
Master the Warlock class.
Master the Aegis class.
Master the Hunter class.
Master the Cleric class.
Master the Monk class.
Master the Chemist class.
Master the Shaman class.
Master the Rogue class.
Teleport to a far away land.
Master the Wizard class.
Obtain a Quintar companion.
Master the Warrior class.
Change a party member's name.
Change a party member's gender.
Open 100 treasure chests.
Master the Fencer class.
Conquer the trials.
Defeat 5 boss flames.
Learn a Monster Magic spell.
Discover 3 Crystals.
Open 50 treasure chests.
Defeat a boss flame.
Discover every Crystal.
Teleport to an unknown world.
Defeat 25 boss flames.
Learn every Monster Magic spell.
Acquire every Summon.
Open 500 treasure chests.
Breed a Golden Quintar.
Beat the game.
Beat the game's secret last boss.
Master the Scholar class.
Master the Beatsmith class.
Master the Summoner class.
Master the Beastmaster class.
Master the Mimic class.