In Hell Is Us, on your path to finding the Keystone of Terror, you will enter the mysterious Arcas Spire in Senedra Forest. This is a relatively straightforward dungeon, up until you come to the final door you need to open, which is a bit of a puzzle. In this Hell Is Us guide, we're going to explain how to open the door and solve the puzzle.

How to Open the Final Door in the Arcas Spire in Senedra Forest in Hell Is Us

  • To get inside the room with this final puzzle, you must stand on a pressure plate and let it harm you.
  • Once you're in, you'll see a multi-storey chamber, with levers, pressure plates, and symbols on the walls. There's a large, locked door at the very top.
  • From the entrance to this chamber, go up the first flight of stairs.
  • Ahead to the left is a plaque that reads, "Where her ever majestic carven likeness stands, the path is revealed to those who heed."
  • In other words, around the chamber are three large statues, each bearing a symbol. These symbols are ultimately the solution to the puzzle.
  • From the plaque, go left to find an open cell.
  • Follow the path left to find another plaque. Note the Skull symbol on it.
  • It reads, "The cage, graven with the Skull sigil, shall stir and rise when any of the pressure plates B1, B2, and F1 feel the weight of blood and pain."
  • In other words, when you engage the right pressure plates, the cage concealing the lever for the Skull symbol (on the ground floor) will lift, giving you a short window of time to return and pull it before the cage descends again.
  • Go back the way you came, then head to the right-hand side of the same floor.
  • Note the letter-and-number symbols on the wall. The previous plaque stated B1, B2, or F1. On this floor, your only option is B2, so stand on the pressure plate below B2.
  • This opens a cell to the left and right, and releases some enemies. Ignore them; sprint down to the ground floor and activate the lever for the Skull symbol.
  • Next, go back up towards B2, then go up the stairs and scan the plaque with the Snake symbol.
  • "The cage, graven with the Twin-Headed Serpent sigil, shall stir and rise when any of the pressure plates E1, E3, and F4 feel the weight of blood and pain."
  • Go along past the stairs, then take the next flight up and find the F4 pressure plate.
  • Stand on it (beware enemies), then go all the way back down to the ground floor to pull the Snake lever.
  • Go back up to the Snake plaque's location.
  • Opposite it is an open cell; go inside, descend the ladder, and read another plaque, this time with the Tower symbol.
  • "The cage, graven with the Tower sigil, shall stir and rise when any of the pressure plates A1, B4, and D1 feel the weight of blood and pain."

Return up the ladder, then go downstairs.

Go to the left-hand side, where you'll find an open cell next to the A2 symbol.

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Go through it and you'll find the A1 pressure plate; stand on it, then return to the ground floor and pull the lever for the Tower symbol.

Hell Is Us: How to Open the Final Door in the Arcas Spire in Senedra Forest 28
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Note: The quickest way down is to drop down the gap, opposite the A1 pressure plate to the right.

Once you have done all three of these, the door at the top of the chamber will open, and you can proceed.


Did you find this walkthrough for the locked door in the Arcas Spire helpful? Tell us in the comments section below, and check out our Hell Is Us guide for more.