Signalis is a game made by and for fans of classic survival horror games like Silent Hill and Resident Evil where arcane puzzles are just as important as ammo conservation. In Signalis Players take control of Elster, a maintenance android looking for her lost companion. Once players have descended the Protektor elevator, they will find themselves in the Hospital area. This is the first area that features a lengthy set of puzzles to unlock the 5-Lock Door using five separate elemental card keys. Each key requires solving a puzzle. Players can follow these steps to solve the Pump Puzzle and acquire the Water Key.

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Head To The Reception Area

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Starting from the Elevator Lobby players should notice the shotgun on the counter behind the glass. Simply exit the lobby from the eastern door that leads to the Eastern Corridor then upwards to Reception. Players can grab the shotgun and use the save point as a home base for this large and complicated area.

Pass Through the East Corridor

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From the Reception, players should move downward into the East Corridor. There is one enemy patrolling up and down this screen. It’s easily avoidable in this large area, but take it down if necessary and head to the door all the way at the southwest side of the hall. Here is the waiting room which features the 5-Lock Door. Make sure to view the SWORD note to open the safe on this level.

Go To The Protektor Bathroom

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Head out the door to the left into the West Corridor. There is another enemy on patrol here. Continue left across the hall into the Protektor Bathroom. Inside this room is a dead ARA unit with a Pump Room key. If players look downwards at the ledge, Elster will comment on the possibility of jumping down if the water is drained. Grab the key and go back into the Western Corridor, this time heading downwards to the door on the right.

Solve The Pump Puzzle

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Once inside, players are able to inspect the Pump Puzzle which survival horror veterans will recognize as an homage to a difficult Resident Evil puzzle. Thankfully, in Signalis there is also a note on how to work the pumps right next to them. There are three tanks labeled A, B, and C with the A tank filled. The goal is to pour water from one tank to the other to end up with A and B being equally half full while C is empty. If players are having difficulty parsing the instructions on the note, simply follow these steps.

  1. A>B>C>A
  2. B>C
  3. A>B>C>A

Pick Up The Water Key

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This should solve the puzzle and drain the water. If any mistakes are made in the order, simply fill up tank A to start again. With the puzzle solved, go back to the Protektor Bathroom and jump down to the Flooded Bathroom. The room contains some Repair Kits and the Water Key on the upturned bathroom stall.

Signalis is available now on Nintendo Switch, PC, PS4, Xbox One, and Xbox Series X/S.

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