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