Horizon Zero Dawn Holo Lock Puzzle Solutions - How to solve puzzles

Holo lock puzzles are locking mechanisms in Horizon Zero Dawn. They’re rarely used, but they usually stand between you and a great prize. They’re solved by rotating a bunch of dials into correct positions. There are usually hints on how to solve them scattered near the puzzle itself, but these can be easy to overlook. In this guide, we’re going to show you all Holo Lock puzzle solutions in Horizon Zero Dawn.

Ancient Armory Holo Lock puzzle

There are two holo lock puzzles you have to solve in order to get the UltraWeave armor. You’ll also need to grab the 5 power cells before you can solve them. If you scan the box next to the first one, you’ll see different times of day written in the 24-hour format. So the correct solution is: up, right, down, left, up.

The second puzzle is on the other side of the room, only available after you crack the first one. When you scan the box, it will show you a bunch of angles. Knowing that 360 degrees is a full circle and the numbers increase clockwise, the solution is simple: right, left, up, right, left.

Grave-hoard Holo Lock puzzle

The Grave-hoard quest has three puzzles you need to solve in order to open a door. The one on the lower level, on your left, has the hint recorded on a nearby audio log. If you listen to it, it will pretty much give you the answer: up, right, left, down.

The second puzzle – the one on the right side of the lower floor – has a more straightforward solution. If you scan the box next to it, you’ll see some incomplete circles. The parts missing from them point to the right position. This makes the solution up, up, down, down.

The last one is on the upper floor. It’s also the easiest one. If you scan the code nexus next to it, it will show you four circles with red lines pointing in certain directions. These directions represent the solution: up, down, left, right.

How to unlock puzzle in Deep Secrets of The Earth quest

During the main mission Deep Secrets of The Earth, you’ll have to solve a couple of puzzles to restore power to a door. The puzzle on the left is solvable right away. If you inspect the box next to it, you’ll see arrows pointing in the required directions, the top one corresponding to the one all the way to the left. So the solution is: left, up, left, down, right.

After that, you’ll have to go to the upper floor and grab the emitter from the desk. This one isn’t as straightforward as the first one – the clue on the left of the door is upside down. The audio log nearby mentions the emmitter is backwards, and everything’s in reverse. With that in mind, the solution is down, left, up, right, down.