Here is the full list of all 54 Ys VIII: Lacrimosa of DANA VIII-Lacrimosa of DANA- achievements.
Cleared Epilogue - End of the Blue Waves, and viewed the true ending.
Cleared Chapter 6 - Lacrimosa of the Distant Sea.
Achieved 100% Treasures Found.
Completed every Castaway Village quest.
Achieved 100% Village Fortifications Built.
Achieved a Reputation of 200 or more.
Achieved 100% Material Entries Logged.
Fully enhanced all weapons.
Defeated Mephorash at the Silent Tower.
Achieved 100% Meal Entries Logged.
Achieved 100% Location Points Found.
Brought all survivors to Castaway Village.
Rescued every spirit in Eternia.
Cleared Chapter 5 - Maiden of the Great Tree.
Performed 100 EXTRA Skills.
Thoroughly explored while playing as Dana.
Defeated the Oceanus once and for all.
Owned 888 of a single item.
Cleared Baja Tower.
Traveled a total distance of 300 krimelye.
Defeated 100 Primordials.
Cleared Chapter 4 - The Lost World.
Performed 100 Flash Moves.
Cleared Chapter 3 - Surpassing Gendarme.
Performed 100 Flash Guards.
Performed a Skill Finish 1000 times.
Thoroughly explored while playing as Adol.
Performed 1000 Breaks.
Cleared Chapter 2 - The Castaway Banquet.
Achieved an S Rank in any raid.
Defeated 2000 beasts.
Made it through the Eroded Valley.
Made it through the Towering Coral Forest.
Enhanced a weapon to Lv. MAX.
Cleared Chapter 1 - The Isle of Seiren.
Cleared Prologue - Night on the Gaete Sea.
Began a new adventure.
Completed the map of the Isle of Seiren.
Achieved 100% Items Collected.
Achieved 100% People Entries Logged.
Achieved 100% Fish Entries Logged.
Achieved 100% Beast Entries Logged.
Achieved 100% Approval Earned.
Completed all raids.
Completed all hunts.
Achieved Lv. MAX with every skill.
Thoroughly explored while playing as Laxia.
Thoroughly explored while playing as Sahad.
Thoroughly explored while playing as Hummel.
Thoroughly explored while playing as Ricotta.
Cleared all Eternia Quests.
Defeated Melaiduma at the Former Sanctuary Crypt.
Witnessed the true ending on Nightmare difficulty or higher.
Passed the final trial, and learned the true history of the Kingdom of Eternia.