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