Full list of all 79 Horizon Zero Dawn Complete Edition achievements. It takes around 60-80 hours to unlock all of the achievements on Windows.
Killed 6 Fireclaw machines.
Drove out the threat within the mountain.
Successfully assaulted Thunder's Drum.
Encountered and Focus scanned every type of machine.
Disabled all Control Towers by overriding or destroying them.
Applied a modification to your spear.
Learned all available skills.
Challenged Aratak at the Frostfigures and won.
Reached player level 50.
Survived the Shaman's Path and found Ourea's retreat.
Traded Bluegleam for a special weapon or outfit.
Ended the threat of the ancient war machines.
Learned all of the new skills in the Frozen Wilds.
Earned at least a Half Sun mark in all trials at all of the Hunting Grounds.
Earned a Blazing Sun mark in all trials at all of the Hunting Grounds.
Reached player level 40.
Explored the Mountain That Fell and recovered a powerful weapon.
Recovered an ancient technology and put it to use.
Defeated the invaders and went inside the sacred mountain.
Discovered the truth of Zero Dawn.
Aided the escapes of Uthid and the child king Itamen from the Shadow Carja.
Infiltrated the Eclipse battle camp and crashed their network.
Rose through the ranks of the Hunters Lodge and helped Talanah defeat Redmaw.
Detached 5 heavy weapons from machines during combat.
Helped Erend investigate Ersa's fate, and foiled a plot against Meridian.
Learned of the ancient past at Maker's End.
Killed 30 human enemies by landing headshots on them.
Reached the Core of every Cauldron and accessed the information within.
Scaled all of the Tallnecks and accessed their information.
Killed at least one of every type of Combat machine.
Reached player level 25.
Killed at least one of every type of Reconnaissance machine.
Unlocked and used the overrides for 7 different types of machine.
Used a Weapon Coil or Outfit Weave on a modifiable weapon or outfit.
Destroyed the corruption inside the Nora valley.
Earned a Blazing Sun mark in all three trials at one Hunting Ground.
Earned at least a Half Sun mark in all three trials at one Hunting Ground.
Found the Nora War-Chief and defeated the killers in the Ring of Metal.
Killed 3 enemies using the Strike from Above skill.
Killed all the corrupted machines in a Corrupted Zone.
Found and accessed a Vantage datapoint.
Reached the Core of a Cauldron and accessed its information.
Performed a stealth kill on 10 machines.
Took back a settlement from a bandit clan.
Found an ancient vessel once used by the Old Ones.
Reached player level 10.
Scaled a Tallneck and accessed its information.
Discovered a strange metal flower.
Detached 10 components from machines during combat.
Overcame adversity and placed first in the Proving.
Defeated the Sawtooth that threatened the Nora.
Learned to hunt and fight alongside Rost.
Obtained all Horizon Zero Dawn achievements.
Killed 10 machines weak to Fire while burning, or weak to Freeze while frozen.
Found and knocked over all of the Grazer training dummies in the Nora region.
Killed at least one of every type of Acquisition machine.
Killed at least one of every type of Transport machine.
Took back all settlements from the bandit clans.
Killed all the corrupted machines in every Corrupted Zone.
Found a wooden effigy left by a Banuk traveler.
Found and accessed all of the Vantage datapoints.
Found all of the Metal Flowers.
Found all of Arnak's figures.
Found all the Ancient Vessels.
Given Aloy's actions, all possible optional allies joined the defense.
Completed a New Game+ playthrough on any difficulty.
Completed a New Game+ playthrough on Ultra Hard difficulty.
Completely drained the floodwater from inside the Greycatch.
Met Ikrie again at the Snowchants Hunting Ground and took first place in her challenge.
Acquired the improved versions of three weapons from Varga.
Completed all side quests and errands in the Frozen Wilds.
Completed the Tallneck, Bandit Camp and Hunting Ground in the Cut.
Killed 5 enemies using the Dismount Strike skill.
Used the Machine Repair or Mount Repair skill on 5 different types of machine.
Killed 15 Scorcher machines.
Killed 10 Frostclaw machines.
Found all of the Pigments in the Cut.
Found all of the Animal Figurines in the Cut.
Reached player level 60.