Follow our step-by-step guide to navigate Cauldron SIGMA in Horizon Zero Dawn. Learn how to find it, defeat the machines outside, and enter the ancient ruins.
Walkthrough
- 1Fast-travel to the Campfire north of Mother's Rise and head northeast to a fork.
- 2Turn north at the fork, then northwest at the next fork to reach Mother's Crown.
- 3In Mother's Crown, claim a Campfire and speak with a merchant named Grist.
- 4Talk to Dral, south of the Campfire, to learn about Cauldron SIGMA and initiate the event.
- 5Head to the northwestern end of Mother's Crown and find the northern gate. Near this gate, you'll find Training Dummy XVIII and Training Dummy XIX.
- 6Before leaving town, speak to Solai, east of the northern gate, to learn about Nakoa and Daytower.
- 7Exit Mother's Crown via the northern gate and cross the drawbridge. Find another Campfire.
- 8Follow the trails and wooden platforms until you reach a fork. The northern path leads towards Hunter's Gathering, but for now, take a diversion northwest.
- 9To the west of this road lies a Corrupted Zone. Destroy the three Corrupted Grazers within to clear the zone and earn 5,000 XP.
- 10Backtrack southeast to the fork, then turn northeast until the road meets another road to the north. Light another Campfire.
- 11Continue east, northeast, cross a bridge, then turn north. Ignore a path to the southeast and continue north to find the wreckage of a caravan where Marzavid starts the quest “Underequipped”.
- 12Continue north to find another Campfire. Save your game.
- 13Continue north along the road to a fork. Turn west, then southwest. Keep an eye to the north to spot Cauldron SIGMA, a triangular structure carved into the mountain.
- 14Defeat the Watchers and Scrappers outside Cauldron SIGMA. Use tall grass for cover and stealth attacks.
- 15Use your spear to override the door by holding down the [Triangle] button.
- 16Enter the Cauldron and proceed through another triangular door to the north.
- 17Loot a pyramidal Supply Crate to the east, then head northwest through a corridor of wires.
- 18Cross a narrow beam and approach the glowing red triangle (vent) to interact with it.
Tips
- Use the Lure Call and Silent Strike combo to easily defeat the Corrupted Grazers in the Corrupted Zone.
- The area outside Cauldron SIGMA has tall grass, which is ideal for hiding and taking down enemies stealthily.
- The [Triangle] button prompt to override the door is a bit of an ironic nod to the triangular shape of the Cauldron entrance.
- Clearing the Corrupted Zone: 5,000 XP
- Starting Cauldron SIGMA event.
- Starting the “Underequipped” quest.
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