Abandoned production site in Genshin Impact: how to solve the puzzle and open all the doors

Abandoned production site in Fontaine and to receive valuable rewards.

This guide will tell you how to solve the drive valve puzzle in the Abandoned Manufacturing Site, open all the doors and find the age to the Underwater Road.

How to get to the Abandoned Production Site in Meropid Fortress

Travel to the teleportation point in the Meropid Prison Production Area. Next to it you will find an elevator with signs indicating the movement down. Get inside the cabin and go down to the Abandoned Production Site.

When the elevator stops, get out and move northwest along the corridor until you emerge into a round room. In the center you will find a room with four entrances and a large round device - a drive valve.

How to solve the puzzle in the Abandoned Production Site of Meropid Fortress in Genshin Impact

There are four locked doors in the room, each of which leads to a separate corridor. To open them, you must use a motorized valve. It operates on the following principle:

• move the gear drive so that it faces the direction you want to go;
• use the terminal to set the device in motion and watch how the position of the mechanical arrows changes;
• stop the rotation when the arrows on the point towards each other, forming a connected straight line.

Behind each unlocked barrier there will be a space with another riddle, solving which you can open the second closed door.

How to open the door on the right (east)

For the first time, the Traveler enters the eastern corridor according to the plot of the quest "Safety".

Place the gear drive at the point opposite the desired door on the bottom right. Then launch the device nearby so that the arrow bar begins to rotate. When both pointers are facing each other in the lower right segment, stop the movement.

If the arrows do not match, proceed as follows:

• set the gear drive to the lower right point and rotate the device so that the small pointer points to the center;
• then remove the drive to any other slot;
• Rotate the device again, this time pointing the large arrow towards the desired input - to the right and down.

After this, the corridor will be open. According to Caterpillar's advice take the gear with you and enter the unlocked age. Inside you will find a hall with another drive valve. Place the gear you obtained earlier there and launch the device nearby.

The arrow will start moving and when it points to the second locked door, stop it.

The room will become accessible, and inside you will find the NPC involved in the quest.

How to open a door from the top (north)

Northern space opens on assignment "Unfinished Comedy".

Place the gear drive in the slot in the north of the structure. Then start the movement using the device and wait until the indicators converge in upper right corner valve.

After this, the age will be open and you can continue the quest.

A situation may arise when the arrows do not face each other in the required direction. The problem can be solved as follows:

• place the gear drive in the upper right corner and rotate the mechanism so that the small arrow points to the center;
• remove the gear and move it to any other point;
• start the device and stop when the big arrow is in the upper right segment.

After this, the door will open. Again remove the gear drive and go with him into the unlocked age.

Enter the room and move the energy storage device to the inactive terminal, and install the gear on the drive. The device will work, and you can direct the arrow to the second sealed door.

When it opens, a curving green tunnel will be revealed inside. There are no branches in it, just move deeper until you get out into a more spacious cave.

Here, activate the teleport and continue to complete the quest mission in the maze of crystals.

How to open the door on the left (west)

Behind the western barrier you can find a valuable reward.

To eliminate it, place the gear drive at the point that is opposite the desired corridor and launch the terminal. It is necessary to install indicators on the mechanism left and up. Wait until both arrows converge at the desired point and stop the rotation.

If you cannot adjust the pointers to the desired position, proceed as follows:

• place the gear drive in the upper left slot and rotate the mechanism so that the small arrow points to the center;
• then move the gear to any place;
• start the device and stop when the large arrow is in the upper left segment.

The door will open, and it is now possible to enter the western corridor.

Having gone there, you will find yourself in a room with another blocked age and a small drive. To the right of it there is a control mechanism - start it, wait until the golden arrow points to the locked door with blue inserts, and at that moment stop it.

The path will be open. Go inside the corridor, and in the depths you will find a reward in the form of a luxurious chest.

Next, get out to the room with a small drive. There is an energy storage device in the right corner - take it. Then point the arrow on the drive to the newly closed age using the same mechanism that you used earlier. The door will unlock and you can go outside.

How to open the door from below (south)

Using a similar principle, you can go to the last, southern corridor.

First, remove the gear and place it in the slot opposite the desired door.

Then start the mechanism and wait until the arrows converge in one line in lower left mechanism. Stop the movement at this moment and the age will be unlocked.

If the arrows do not match, you can do this:

• set the gear drive to the lower left point and rotate the device so that the small pointer points to the center;
• then place the gear in any other slot;
• start the device again, this time pointing the large arrow towards the desired door - to the left and down.

Having done everything correctly, you can gain access to the southern corridor.

Head inside. At the second door you will see boxes with an amazing chest hidden behind them. Open it to get new instructions for crafting the item “Strong Mallow Wood Trade Box”.

Then use the terminal at the small drive. Point towards the closed gate and stop to gain access to the rooms further on.

The new space houses a punching bag. Place the energy storage device you picked up earlier in the western room nearby and hit the object with a simple attack. As a reward for this you will receive a regular chest.

How to open the age to the Underwater Road from the Geode Mine Shaft

After visiting the northern corridor and the maze of crystals as part of the quest "An Eye for an Eye", you can return there again to find new underwater routes.

Travel to the teleporter in the Abandoned Manufacturing Site and exit to the maze. To get through it faster, you can open the map and check it.

Run straight until the crystal paths begin to branch. Then you need to turn right and go around the druzes, moving deeper to the northwest. Follow the druse corridor to the west until you reach a small pond. Dive into it.

Once underwater, allow the character to swim upstream until you stop at the geode shaft, from which you need to swim up to the Underwater Road. You can pick it up there hydrocules.

Turn left and swim towards the ring to emerge into an underwater cave - the boss's residence Seahorse of the Millennium Pearl.

Swimming to the right, through a round iron age, you will find yourself in the Underwater Road location, where you can emerge and open another teleport.

We hope this guide helped you understand how to open the doors in the Abandoned Manufacturing Site in Genshin Impact. If anything remains unclear, ask questions at comments. Read Genshin Impact guides on our website.