Here is the full list of all 167 Nusakana achievements.
Recruit Molamola to your party.
Finish the Missing Chief I.
Help Aslan and Angel meet each other to resolve their past promise.
Achieve maximum affection with the Kilferns.
Achieve maximum affection with the Syldarians.
Achieve maximum affection with the Tourists.
Achieve maximum affection with the Nusakanans.
Refuse to participate on peeking the girls bathing at the waterfall.
Bring a party member when peeking at the waterfall.
Bring at least one adult party member when peeking at the onsen.
Bring party member but no adults when peeking at the onsen.
Successfully peek on the girls bathing at the the waterfall.
Succesfully peek on the girls at the onsen.
Learn all of the sword skills.
Learn all of the knuckle skills.
Learn all of the gun skills.
Learn all of the knife skills.
Store 99 brown matters in your inventory.
Collect all the guide books.
Complete the Encyclopedia.
Help Riri against her brother.
Don't help Riri against her brother.
Save Bondan all the time from his peril.
Place all the beacons.
Defeat Hamune at your first encounter.
Defeat Hamune.
Defeat Garnishun at your first encounter.
Defeat Garnishun.
Defeat Hulhiru.
Defeat Lyishtrik
Defeat Cahayya
Defeat Gelaf Ishkalie.
Defeat Brometheus.
Visit all of the sea fishing locations.
Catch the Oarfish.
Catch the Beluga Sturgeon
Caught a Manta Ray.
Caught a Marlin.
Release a rare fish.
Release a fish.
Keep a fish.
Defeat the Nightwalker.
Appease the night walker with the sajen.
Defeat Genderuwo.
Defeat the Umibozu.
Defeat the Ahool.
Defeat the Babi Ngepet.
Defeat Rabboss.
Defeat Barongsai.
Unlock all of the hotspring scenes.
Recruit Kat to your party.
Recruit Mica to your party.
Recruit Pipi to your party.
Recruit Auria to your party.
Recruit Delphi to your party.
Recruit Flily to your party.
Recruit Angel to your party.
Recruit Eelia to your party.
Recruit Orca to your party.
Recruit Narwhal to your party.
Recruit Mako to your party.
Recruit Azul/Ruvio to your party.
Recruit Coela to your party.
Recruit Arwana to your party.
Recruit Pai to your party.
Recruit Sal to your party.
Recruit Rain to your party.
Recruit Gurami to your party.
Molamola Max Affection.
Mica Max Affection.
Kat Max Affection.
Pipi Max Affection.
Auria Max Affection.
Delphi Max Affection.
Eelia Max Affection.
Angel Max Affection.
Flily Max Affection
Pai Max Affection.
Arwana Max Affection.
Sal Max Affection.
Rain Max Affection.
Gurami Max Affection.
Orca Max Affection.
Narwhal Max Affection.
Azul / Ruvio Max Affection.
Mako Max Affection.
Coela Max Affection.
Attain Molamola's Ending.
Attain Mica's Ending.
Attain Kat's Ending.
Attain Pipi's Ending.
Attain Auria's Ending.
Attain Delphi's Ending.
Attain Eelia's Ending.
Attain Angel's Ending.
Attain Flily's Ending.
Attain Pai's Ending.
Attain Arwana's Ending.
Attain Sal's Ending.
Attain Rain's Ending.
Attain Gurami's Ending.
Attain Orca's Ending.
Attain Narwhal's Ending.
Attain Azul / Ruvio's Ending.
Attain Mako's Ending.
Attain Coela's Ending.
Finish off the Elvan Empress.
Defeat the Elvan Armor and save the Elvan Empress.
Achieve high enough affection with most of the maidens in one playthrough.
Leave Nusakana without memorable adventures.
True ending.
Collect all guns available.
Collect all knives available.
Collect all swords available.
Collect all knuckles available.
Craft all gears from Havel.
Craft all available foods.
Collect 99 Mangoes.
Collect all bomb types.
Learn all weather magics.
Learn all available magics.
Explore all the island zones.
Accumulate 200,000 Sh.
Accumulate 500,000 Sh.
Accumulate 900,000 Sh.
Catch 99 Tenggiris.
Catch 88 Lou Hans.
Catch 99 Sturgeons.
Catch 99 Oarfishes.
Catch 99 Paris.
Have 99 caviars in your inventory.
Catch all species of fish.
Catch all freshwater fishes.
Catch all saltwater fishes.
Equip sunglasses and nusakanan aloha shirt at the same time.
Heed Gurami's advice and don't enter the gate.
Recruit all of the maidens.
Win the hide and seek game with Mica and her friends.
Leave Mica and her friends while playing hide and seek with them.
Beat Kat's quiz on the first try.
Fail at Kat's quiz.
Let the hold out soldier escape from the villagers' anger.
Let the hold out soldier get beaten and captured by the villagers.
Beat Sal at the duel barehanded.
Get beaten by Sal at the duel.
Finish the Missing Chief II.
Finish the Missing Chief III.
Have Mako disrupt you in your adventure to the Evermist Trench with Brometheus.
Have met Mako before she kidnap Delphi.
Camp together with Pipi, Kat, and Mica.
Have a mention about this incident.
Have Narwhal, Pipi, and Angel in your party.
Give him something more sane instead of that stupid gift.
Give the dude what he wants...
Fix the Lighthouse of Lighthouse Island.
Meet Arinka's family.
Let the smuggler have the rhino horn.
Report the smuggler to the village.
Reach the year 1952.
Achieve True Ending in Easy Mode.
Clear the game in Easy Mode.
Clear the game in Normal Mode.
Clear the game in Classic Mode.
Clear the game in Extreme Mode.
Unfortunately end your adventure in Extreme Mode.
Attain the special ending of two sisters.
Attain the special ending of two sisters with their mother safe.