Full list of all 50 Infinite Undiscovery achievements worth 1,000 gamerscore. It takes around 120-150 hours to unlock all of the achievements on Xbox 360.
Defeated the Dreadknight.
Defeated Veros.
Sigmund joined your party in the Seraphic Gate.
Defeated Ethereal Queen in Infinity mode.
Executed a 20-hit down combo.
Obtained 99,999,999 Fol.
Obtained every item.
Learned every tune.
Cooked a Heaven and Earth dish.
Defeated Ethereal Queen in Hard mode.
Learned every battle skill.
Learned every spell.
Wrote "Will of the Universe."
Alchemized a holy grail.
Forged an azureal blade.
Destroyed the Ashen Chain.
Allowed nine characters to vermify.
Reached Sapran within 3 minutes.
Connected with every character.
Destroyed the Amber Chain.
Executed a 20-hit aerial combo.
Reached Empress Svala within 3 minutes.
Obtained level 6 writing skills.
Obtained level 6 alchemy skills.
Obtained level 4 alchemy skills.
Obtained level 6 enchanting skills.
Obtained level 4 enchanting skills.
Played for over 40 hours.
Obtained level 4 writing skills.
Destroyed the Cerulean Chain.
Destroyed the Cerulean Chain without being hit by the tsunami once.
Obtained level 6 cooking skills.
Obtained level 4 cooking skills.
Defeated ten enemies using a mine cart in the Bihar Mines.
Destroyed the Crimson Chain.
Allowed the enemy to surprise you 10 times.
Defeated 1000 enemies.
Obtained level 6 forging skills.
Obtained level 4 forging skills.
Rescued Leif before he got injured.
Reached a safe haven without letting any unblesseds perish.
Destroyed the Orange Chain.
Destroyed the Azure Chain.
Executed a 30-hit ground combo.
Rescued all the Burguss soldiers in Castle Prevant.
Defeated ten enemies using a catapult at Castle Prevant.
Launched 10 surprise attacks.
Reached Nolaan without taking any damage.
Launched your first surprise attack.
Detonated every explosive barrel in Graad Prison.