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