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