As part of the Forbidden Legacy Side Quest in Horizon Forbidden West, you will have to unlock two doors with a code. The first after jumping over to a tower, the second further up in the tower. Here are the solutions. The codes are the same for all players.
Forbidden Legacy Door Code #1
The first Forbidden Legacy Door Code is 102023.
This is after jumping over to the tower.
You get the clue for this code by scanning the purple datapoint to the left of the door panel, behind the broken wall. You can press Touchpad after scanning it to read it. Alternatively, press Touchpad > Notebook > Datapoints > Text Datapoints – Side Quests > select Datapoint called “Useless”. The text in this datapoint reveals the door code is the “founding date of the Atbay Company”.
Now quit out of the datapoint menu and Alva will reveal the company was founded in October 2023 (10-2023). October is the 10th month of the year, thus our first two digits are 10, followed by the year 2023. This is how we arrive at the full 6-digit code of 102023.
Forbidden Legacy Door Code #2
Later in the quest after climbing to the top of the tower you must unlock a second door.
The second Forbidden Legacy Door Code is 402625.
You find this out by scanning the 4 artifacts in the same room, directly across from the door panel. Alva will make a comment about each artifact. You don’t necessarily need to scan them and can punch in the code directly. The way you’d normally find it out is by combining the numbers Alva mentions on each of the 4 artifacts. On left one (bird statue) she comments about someone being 40 years old, on the second from the left she says something about H2Flow. on the third she says 25th anniversary, on the last one she says Dragonfly-6 Drone. It’s easier with subtitles turned on. However, the two artifacts on the floor are in the wrong order. When trying to punch in the code in the presented order, Aloy will comment that perhaps the artifacts were in different places before they fell to the floor. So simply switch around the “6” and the “25” and you have your correct code of 402625.
For more guides, check out the full Horizon Forbidden West Wiki & Strategy Guide.
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