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