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