Here is the full list of all 156 Lost Ark achievements.
Unlock all of your Stronghold
Clear Chaos Gate without anyone dying
Reach Combat Lv. 60
Equip Relic-rarity tools for all six Trade Skills
Upgrade 5 ships to Lv. 10
Reach Manor Level 5
Discover the Burning Ice
Earn exactly 777 Silver from dropped loot
Participate in a Guild Raid
Use a mining bomb and fail to blow up any ore 100 times
Track 400 waypoints on Secret Maps
Complete Dispatch missions at SS 50 times
Throw 100 commemorative coins in Atropos
Earn 500 Cooperation Bonus Points yourself
Complete the Platinum Field alone
Discover Pirate's Peg Leg
Participate in a Guild PvP match
Throw a machete and hit prey while Search is active 15,000 times
Collect a Diamond Chest from Dimension Cube (normal)
Enter 200 Ghost Ships
Reach Hunting Lv. 50
Collect a Diamond Chest from Elite Cube (normal)
Collect 30 Torches scattered throughout Werner's Grand Manor
Destroy the huge golden peach in Shangra
Recruit 60 crew members
Salvage treasure 500 times
Clear a Guardian Raid without anyone in your party dying
Pick 4000 mushrooms
Kill 240,000 monsters
Clear Twilight Chapel within 11 minutes
Take Selfies in Yozmund, Distorted Island, Phantom Island, Phantomwing Island, Shadow Moon Market, and Shangra
Reach Excavating Lv. 50
Reach Foraging Lv. 50
Enter 200 secret dungeons
Reach Fishing Lv. 50
Clear a Cube Stage as the last surviving player
Use the Portal in a legendary secret dungeon with no kills
Enter a secret dungeon in a 4-person party
Reach Mining Lv. 50
Take Selfies on Goblin Island, Island of Mist, Medeia, Lush Reed Island, and Asura Island
Defeat Field Bosses: Chuo, Vulkan, Casrick, Maneth
Find an item after a humpback whale jumps 77 times
Earn a total of 4,000,000 Silver by selling items
Earn 100,000 or more Silver with a single sale
Defeat Field Bosses: Black Chicking, White Chicking, True Batuark, Gorka Grosse, Savnak, Erasmo
Take Selfies on Aiwana Island, Peyto, Gravis, Lagoon Island, Revelry Row, and Gesbroy
Win 10 duels by forfeit
Win a duel by forcing the opponent out-of-bounds 100 times
Win 10 duels without taking any damage
Win 200 duels
Opponent declines 25 or more duels
Clear Boss Rush Stage 1
Die while riding a hover board
Defeat Field Bosses: Rudric, Salt Giant, Roblom, Wili-wili, Caspiel
Feel ten essences of Taoist energy hidden across Shangra
Open the 5 Doors of Choice at Lastra Forest
Feel five essences of Taoist energy hidden across Shangra
Trade 200 maps
Trade a map for the first time
Give 200 Affinity gifts
Complete 100% all Adventurer's Tomes
Use 10,000 materials for item crafting
Eavesdrop on hushed whispers exchanged in Shadow Moon Market
Defeat Gold Chicking in Alaker
Take Selfies in Argon, Sunflower Island, Liebeheim, and Island of Azure Wind.
Play Sheet Music 900 times
Use the Ship Horn 10 times
Solve the mysterious murder case in Feiton
Get 30 Legendary items by crafting
Take a screenshot on Starkeep Island
Defeat Tarsila
Reach item level 1300
Clear a Chaos Gate without dying
Clear 100 Chaos Gates
Clear a Chaos Gate in a group of 30
Fuse Gems into Lv. 5 or above 100 times
Drink handcrafted beer until you get drunk
Complete all Co-op quests in Gesbroy
Clear 50 Guardian Raids by singlehandedly inflicting at least 50% of the damage it takes to clear
Complete 500 Daily Quests
Use Town Transportation in Stern, Changhun, and Vern Castle
Change a ship’s name
Buy 7 Legendary items from the Wandering Merchant
Reach Logging Lv. 50
Spend 1,000,000 Silver repairing gear
Collect a Diamond Chest from Cube (normal)
Clear a Cube stage with less than 5% HP left
Follow Armen's Tracks
Complete 100% of Adventurer's Tome: Yorn
Make 50 Exchanges with a wandering merchant
Complete To the Nest quest in North Vern
Repair 300 items at 0 durability
Play for 500 total hours with a character
Resurrect after being dead for 4 minutes
Complete 100% of Adventurer's Tome: Rohendel
Complete 1000 Co-op Quests
Complete Co-op Quests with 15,000 players
Find the 5 secret locations in the Morai Ruins
Successfully dismantle 30 Legendary or better items
Find the wandering merchant
Complete 100% of Adventurer's Tome: Shushire
Kill Vrad
Attack an enemy while disguised as a prisoner
Complete 100% of Adventurer's Tome: North Vern
Win in Team Deathmatch without losing any teammates
Clear 500 Guardian Raids
Try smelting 1,000 times
Reach Item level 575
Use 10 awakening skills
Inflict at least 75,000 damage in a single battle
Play an instrument for an Affinity NPC
Equip an Ability Stone
Successfully facet 150 times
Sell 20,000 items
Find an island
Complete 100% of Adventurer's Tome: Arthetine
Complete the Heart of Sceptrum quest in Arthetine
Win the Anikka Tournament
Contribute to a Guild's weekly income
Use a healing potion with 1 HP left
Complete 100% of Adventurer's Tome: Anikka
Complete Peace of Mind quest in Tortoyk
Complete a dungeon with a guild member
Kill 20 elite monsters
Complete 100% of Adventurer's Tome: Tortoros
Obtain 200 treasure maps
Make your maiden voyage on the Sea of Gienna
Enter a port
Complete 100% of Adventurer's Tome: East Luterra
Obtain your first Ark
Learn 9 pieces of Sheet Music
Collect 100 or more titles
West Luterra: Stop Scherrit's plan
Switch to Skill Tree Tier 3
Complete Crown of Lakebar quest in West Luterra
Complete 250 Sudden Quests
Complete 100% of Adventurer's Tome: West Luterra
Join a guild
Put 500 cards in your catalog
Apply 150 skill level changes
Activate 50 Triports
Complete 100% of Adventurer's Tome: Yudia
Pick 500 Mokoko Seeds
Meet a companion on your quest to find the Ark
Progress to an Advanced Class
Perform 40,000 basic attacks
Collect a Diamond Chest from Cube (hard)
Collect a Diamond Chest from Elite Cube (hard)
Clear 20 Abyss Raids without using Battle items
Win in Team Deathmatch by at least 10 more kills than your opponent
Reach Grandmaster in Competitive Match
Reach PvP Extreme 10
Reach PvP Tier 10
[Team Elimination] Win 100 times
Singlehandedly eliminate all enemies in Team Elimination
Win 500 matches in the Proving Grounds