Here is the full list of all 80 Horizon Forbidden West Complete Edition achievements.
Completed 1 Arena challenge set.
Learned all available skills on one tree.
Reached player level 60.
Equipped an elite coil on a weapon or an elite weave on an outfit.
Put an end to the Zenith threat and discovered Nemesis.
Encountered and Focus scanned every type of machine.
Reached the Core of every Cauldron and accessed their information.
Helped Alva retrieve data to help the Quen.
Completed 2 quests that required a flying mount.
Flew into battle and vanquished Regalla.
Reached the top of every Tallneck and accessed their information.
Killed at least one of every type of Combat machine.
Reached player level 50.
Won first place in two different Gauntlet Runs.
Defeated the outpost leader and recovered the tags from 4 Rebel Outposts.
Completed key objectives in 1 Rebel Camp.
Helped Kotallo build and test a mechanized arm.
Survived Thebes and befriended the Quen.
Used Grapple Strike on 5 unique machines.
Helped Zo reboot the land-gods to save Plainsong.
Killed at least one of every type of Acquisition machine.
Killed at least one of every type of Transport machine.
Killed at least one of every type of Reconnaissance machine.
Upgraded a Valor Surge to its maximum level.
Aided both Drakka and Yarra and chose the better candidate.
Completed 1 Survey Drone, 1 Black Box, 1 Relic Ruin, 1 Vista Point, and 1 Signal Tower.
Reached player level 30.
Completed all contracts at a Salvage Contractor.
Successfully performed 3 different unlockable melee combos.
Inflicted every elemental state on an enemy at least once.
Encountered the Quen and recovered DEMETER.
Drained Las Vegas and recovered POSEIDON.
Obtained 1 weapon from every weapon class.
Picked up 5 different heavy weapons.
Resolved all of the problems troubling the Daunt.
Upgraded the Food Pouch, Potion Pouch, Resource Pouch, Trap Pouch, and any ammo pouch at least once.
Followed Beta's distress signal and brought her back to base.
Defended the Kulrut and recovered AETHER.
Reached player level 20.
Equipped a weapon of any tier with 2 coils.
Fully upgraded 3 weapons.
Discovered and completed 3 Relic Ruins.
Unlocked a Weapon Technique for 3 different weapon classes.
Reached the Core of a Cauldron and accessed its information.
Detached 100 components from machines.
Secured a base of operations and rebooted GAIA.
Reached the top of a Tallneck and accessed its information.
Survived the ambush at the Embassy and gained passage into the Forbidden West.
Cleared the way to the Embassy and reopened the Daunt.
Performed a stealth kill on 10 machines.
Arrived at the Daunt seeking passage into the Forbidden West.
Obtained all Horizon Forbidden West Achievements.
Investigated all Rebel Camps and helped Erend defeat Asera.
Earned at least a Quarter Stripe mark in all three trials at one Hunting Ground.
Earned at least a Quarter Stripe mark in all three trials at all Hunting Grounds.
Rode a Charger, Bristleback, and Clawstrider.
Glided uninterrupted for 60 seconds.
Won a match against 2 different Machine Strike challengers.
Unlocked and used the overrides for 10 different types of machine.
Defeated the Tenakth melee master known as the Enduring.
Fully upgraded 3 different outfits.
Used dye flowers to unlock and apply a new dye.
Completed a New Game+ playthrough on any difficulty.
Completed a new or New Game+ playthrough on Ultra Hard difficulty.
Obtained all New Game+ weapons, dyes, and face paints.
Completed all main and side quests in the Burning Shores.
Located the missing Quen and discovered Londra's plan to leave Earth.
Uncovered the truth of Londra's plans for the Quen and rescued Seyka's sister.
Helped the Quen of Fleet's End recover priceless knowledge and rescue those held captive.
Defeated the awakened Horus and put a stop to Londra's plans.
Learned all new skills in the Burning Shores.
Used Brimshine to purchase 1 outfit and 1 weapon.
Fully upgraded the Specter Gauntlet.
Reached the Core of Cauldron THETA and accessed its information.
Encountered and Focus scanned every new machine in the Burning Shores.
Recovered all Pangea Figurines and completed the Dino Digits quiz.
Recovered all Delver Trinkets and unearthed their trove.
Discovered and completed all Aerial Captures.
Killed 5 machines with the Specter Gauntlet while gliding.
Killed 5 Bileguts and 50 Stingspawn.