Here is the full list of all 236 Last Dream achievements.
Defeat 100 Monsters
Acquire the Drill
Acquired 5 Drill Items
Acquired 10 Drill Items
Complete Tier #1 of the Hunter's Guild
Complete Tier #2 of the Hunter's Guild
Complete Tier #3 of the Hunter's Guild
Complete Tier #4 of the Hunter's Guild
Defeat Helios in the Forest Tower Basement
Defeat Helios in the Forest Tower Basement With An Average Party Level Less Than or Equal to 20 on Normal or Higher Difficulty
Defeat the Dark Lord in Pandora Castle
Defeat the Dark Lord in the encounter at Pandora Castle With An Average Party Level Less Than or Equal to 25 on Normal or Higher Difficulty
Defeat the Kraken Without Using the Gorgon's Head
Defeat the Kraken without using the Gorgon's Head With An Average Party Level Less Than or Equal to 25 on Normal or Higher Difficulty
Defeat the Magi Guardian in the Trial of Perseverance
Defeat the Magi Guardian With An Average Party Level Less Than or Equal to 40 on Normal or Higher Difficulty
Collect 50% of the Treasures on the Central Continent
Collect 75% of the Treasures on the Central Continent
Collect 90% of the Treasures on the Central Continent
Collect 100% of the Treasures on the Central Continent
Complete the Game on Normal Difficulty
Complete the Game on Hard Difficulty
Complete the Game on Very Hard Difficulty
Complete the Game on Legendary Difficulty
Defeat 250 Monsters
Defeat 500 Monsters
Defeat 1000 Monsters
Defeat 2500 Monsters
Defeat 5000 Monsters
Defeat 10000 Monsters
Acquire the Submersible
Tame the Blue Giant Moa
Completed 10 Floors of the Abyss on Hard or Higher Difficulty
Completed 20 Floors of the Abyss on Hard or Higher Difficulty
Completed 30 Floors of the Abyss on Hard or Higher Difficulty
Completed 40 Floors of the Abyss on Hard or Higher Difficulty
Completed All 50 Floors of the Abyss on Hard or Higher Difficulty
Collect 50% of the Treasures on the Eastern Continent
Collect 75% of the Treasures on the Eastern Continent
Collect 90% of the Treasures on the Eastern Continent
Collect 100% of the Treasures on the Eastern Continent
Complete the Game while Escaping From Battle Fewer Than 100 Times
Complete the Game while Escaping From Battle Fewer Than 50 Times
Complete the Game while Escaping From Battle Fewer Than 25 Times
Complete the Game while Escaping From Battle Fewer Than 10 Times
Complete the Game while Escaping From Battle Fewer Than 5 Times
Find the Thieves Guild Hideout
Obtain the Skeleton Key
Defeat the Bandit Leader, Rufus
Obtain the Upgraded Skeleton Key
Win 10,000G at the Casino
Win 25,000G at the Casino
Win 50,000G at the Casino
Win 100,000G at the Casino
Win 500,000G at the Casino
Complete 3 of 9 caves in the Cave of the Mystics
Complete 6 of 9 caves in the Cave of the Mystics
Complete the Cave of the Mystics
Collect 50% of the Treasures on the Northern Continent
Collect 75% of the Treasures on the Northern Continent
Collect 90% of the Treasures on the Northern Continent
Collect 100% of the Treasures on the Northern Continent
Complete the Game With An Average Party Level Above 35
Complete the Game With An Average Party Level Above 50
Complete the Game With An Average Party Level Above 60
Complete the Game With An Average Party Level Above 70
Visit 10 Terran Locations
Visit 20 Terran Locations
Visit 30 Terran Locations
Visit 40 Terran Locations
Visit 50 Terran Locations
Visit 60 Terran Locations
Visit 70 Terran Locations
Visit 80 Terran Locations
Visit 85 Terran Locations
Visit All Terran Locations
Open 5 Excavated Areas with Mining Bombs
Open 10 Excavated Areas with Mining Bombs
Open 15 Excavated Areas with Mining Bombs
Open 20 Excavated Areas with Mining Bombs
Open 25 Excavated Areas with Mining Bombs
Open 30 Excavated Areas with Mining Bombs
Open All Excavated Areas with Mining Bombs
Reach Lemuria
Reach Atlantis
Reach Dvergar
Collect 50% of the Treasures on the Northwest Continent
Collect 75% of the Treasures on the Northwest Continent
Collect 90% of the Treasures on the Northwest Continent
Collect 100% of the Treasures on the Northwest Continent
Complete the Game in Fewer than 125,000 Steps
Complete the Game in Fewer than 75,000 Steps
Complete the Game in Fewer than 50,000 Steps
Complete the Game in Fewer than 35,000 Steps
Complete the Game in Fewer than 25,000 Steps
Complete 5 Puzzles
Complete 10 Puzzles
Complete 15 Puzzles
Complete 20 Puzzles
Complete 25 Puzzles
Complete 30 Puzzles
Complete 35 Puzzles
Complete 40 Puzzles
Complete 45 Puzzles
Complete 50 Puzzles
Save Dante's Daughter, Elizabeth, in Under 15 Minutes on Hard or Higher Difficulty
Collect All the Treasures in the Woods of Despair
Kill the Monsters that have Invaded the Fairy's Home
Rescue the King of Asgard
Complete the Asgard Catacombs Without Allowing the Torch to Expire
Beat Mr. Cope in a Vertical Leaping Competition
Slay the Leviathan
Reach Dvergar Without Mandrew's Aid on Normal or Higher Difficulty
Complete All Six Magi Trials
Defeat Hannibal by Yourself at the Well of the Souls
Synthesize the Highest (2nd) Level Adamantium Weapons and Armor
Complete the Game on Legendary Difficulty, the Grind Encounter Rate, and 'No Saving in Dungeons'
Complete the Game with a Knight in Your Party
Complete the Game with a Monk in Your Party
Complete the Game with a Thief in Your Party
Complete the Game with a Hunter in Your Party
Complete the Game with a Gray Mage in Your Party
Complete the Game with a White Mage in Your Party
Complete the Game with a Black Mage in Your Party
Complete the Game with an Engineer in Your Party
Find All 8 Giant Moa Forests
Enter All Underwater Caverns
Enter All Fishing Docks Outside Cities
Collect 50% of the Treasures on the Southern Continent
Collect 75% of the Treasures on the Southern Continent
Collect 90% of the Treasures on the Southern Continent
Collect 100% of the Treasures on the Southern Continent
Complete the Game While Staying At the Inn Fewer Than 25 times on Normal or Higher Difficulty
Complete the Game While Staying At the Inn Fewer Than 10 times on Normal or Higher Difficulty
Complete the Game While Staying At the Inn Fewer Than 5 times on Normal or Higher Difficulty
Complete the Game While Never Staying At An Inn on Normal or Higher Difficulty
Synthesize the Thin Fishing Pole
Synthesize the Strong Fishing Pole
Synthesize the Deluxe Rod
Synthesize the Luring Rod
Synthesize the Master Rod
Finish 1st in the Beginner level Moa Race
Finish 1st in the Intermediate level Moa Race
Finish 1st in the Master level Moa Race
Complete Mine Cart Challenge #1
Complete Mine Cart Challenge #2
Complete Mine Cart Challenge #3
Collect 50% of the Treasures on the Central Islands
Collect 75% of the Treasures on the Central Islands
Collect 90% of the Treasures on the Central Islands
Collect 100% of the Treasures on the Central Islands
Complete the Game using the Save Option 'Save Only in Designated Locations' on Normal Difficulty or Higher
Complete the Game using the Save Option 'No Saving in Dungeons' on Normal Difficulty or Higher
Acquire Sonar
Find 5 Sonar Items
Find 10 Sonar Items
Find 15 Sonar Items
Find 20 Sonar Items
Find 25 Sonar Items
Find 30 Sonar Items
Find 35 Sonar Items
Find 40 Sonar Items
Find 45 Sonar Items
Find All Sonar Items
Complete Tier #1 of the Arena
Complete Tier #2 of the Arena
Complete Tier #3 of the Arena
Complete Tier #4 of the Arena
Complete Tier #5 of the Arena
Complete Daedalus' Diabolical Puzzle
Complete Daedalus' Diabolical Puzzle in Under 30 Minutes
Complete the Hedge Maze
Collect 50% of the Treasures on the Outer Islands
Collect 75% of the Treasures on the Outer Islands
Collect 90% of the Treasures on the Outer Islands
Collect 100% of the Treasures on the Outer Islands
Complete the Game With 50 or Fewer Saves on Normal or Higher Difficulty
Complete the Game With 25 or Fewer Saves on Normal or Higher Difficulty
Complete the Game With 10 or Fewer Saves on Normal or Higher Difficulty
Complete the Game With 5 or Fewer Saves on Normal or Higher Difficulty
Escape from Mt. Gerra in Less Than 1 Minute
Defeat the Flame Goddess in Mt. Gerra
Defeat All City Guard Types
Defeat 10% of All Enemy Types
Defeat 25% of All Enemy Types
Defeat 50% of All Enemy Types
Defeat 75% of All Enemy Types
Defeat 90% of All Enemy Types
Defeat 95% of All Enemy Types
Defeat 98% of All Enemy Types
Defeat 100% of All Enemy Types
Catch a Blue Whale
Catch a Giant Squid
Catch a Leviathan
Catch all types of Saltwater Fish
Catch all types of Icewater Fish
Catch all types of Freshwater Fish
Catch all types of High Level Fish
Catch every swimming species in Terra Waters
Collect 50% of the Treasures on the Southwest Continent
Collect 75% of the Treasures on the Southwest Continent
Collect 90% of the Treasures on the Southwest Continent
Collect 100% of the Treasures on the Southwest Continent
Complete the Game with the Standard Encounter Rate on Normal Difficulty or Higher
Complete the Game with the Grind Encounter Rate on Normal Difficulty or Higher
Synthesize 10% of All Possible Equipment
Synthesize 25% of All Possible Equipment
Synthesize 50% of All Possible Equipment
Synthesize 75% of All Possible Equipment
Synthesize 90% of All Possible Equipment
Synthesize 95% of All Possible Equipment
Synthesize 98% of All Possible Equipment
Synthesize 100% of All Possible Equipment
Collect 10% of All Recipes
Collect 25% of All Recipes
Collect 50% of All Recipes
Collect 75% of All Recipes
Collect 90% of All Recipes
Collect 95% of All Recipes
Collect 98% of All Recipes
Collect 100% of All Recipes
Free All of the Prisoners from the Pandora Castle Dungeon
Acquire the Rosetta Stone
Collect 50% of the Treasures in Terra
Collect 75% of the Treasures in Terra
Collect 90% of the Treasures in Terra
Collect 98% of the Treasures in Terra
Collect 100% of the Treasures in Terra
Collect 50% of the Treasures on the Far Eastern Continent
Collect 75% of the Treasures on the Far Eastern Continent
Collect 90% of the Treasures on the Far Eastern Continent
Collect 100% of the Treasures on the Far Eastern Continent
Complete the Game in Under 20 Hours on Hard or Higher Difficulty
Complete the Game in Under 15 Hours on Hard or Higher Difficulty
Complete the Game in Under 12.5 Hours on Hard or Higher Difficulty
Complete the Game in Under 10 Hours on Hard or Higher Difficulty