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