Opening The Ancient Armory
There are two parts to opening the ancient armory and getting Horizon Zero Dawn’s best armor set. First, you must open the door. This requires two cells. You’ll be given a clue if you scan the wall to the right. You’ll need to turn the dials that activated with the Power Cells to match the clue. The answer from left to right is:
UP, RIGHT, DOWN, LEFT, UP
After you’ve done that, it’s time to actually gain access to the armor, this is where the other three Power Cells you’ve collected come into play. They are required to open the clamps and are placed in three slots in a room after where you placed the first two. You’ll once again have to solve a complicated puzzle, but don’t worry, we’ve sorted out the answer for you. From left to right it’s:
RIGHT, LEFT, UP, RIGHT, LEFT
That’s all there is to the ancient armory quest. Once the clamps are unlocked, interact with the suit to receive the Shield-Weaver Treasure Box. Inside of that treasure box is, you guessed it, the Shield-Weaver armor that is easily the best in Horizon Zero Dawn. It absorbs all damage until it starts flashing. At that point, simply avoid damage for just a few seconds and you can get right back into the action.
For more on Horizon Zero Dawn, check out our wiki.