A Plague Tale Requiem: How to Solve Docks Puzzle in Chapter 4 | Mercy Achievement Guide

The docks puzzle is one of the many puzzles that you can encounter throughout your playthrough in A Plague Tale: Requiem. You will be able to come across this puzzle in Chapter 4 of the game, and solving this will unlock the Mercy achievement.

Let’s find out how.

How to Solve Docks Puzzle in Chapter 4 | Mercy Achievement Guide in A Plague Tale: Requiem

As soon as you reach the docks, head over to the left to find a crank. Then, to the other side is a drawbridge. Use your sling to shoot the chain that holds the drawbridge, causing it to fall over. Shortly after, a guard from the cabin will go outside and will start a short conversation.

After the conversation, you will then work alongside each other to solve the puzzle. The soldier will proceed to turn the crank on his side to lift the boat in the middle. At the same time, you need to turn the crank on your side as well. This will cause a bridge to move to where you are.

Sitting on top of the bridge is an alcohol barrel with a crank on it. Turn on the crank to spill the barrel’s contents into the pool of resin right below it. This will then create tar which you have to ignite using your Igniter.

Igniting the Other Pools

Once you have lit up the pool, jump on the bridge and have Lucas turn on the crank to move it. After making it to the other side, the guard will then lower the boat to keep the bridge in place.

Have Lucas let go of the crank to position the barrel, and same as earlier, turn on the crank on the barrel to pour alcohol into the resin pool.

After you have ignited the second pool, have Lucas turn on the crank to move the bridge. Then, on your end, turn on the crank to lift the second boat and allow the bridge to pass through. Once again, pour alcohol into the resin pool and ignite it with your Igniter.

Guiding Lucas

Once the area is clear, Lucas will then move to the area below. This time, however, a swarm of rats will surround him. Unfortunately, the rats won’t go away since the light won’t be able to reach that area.

To solve this, all you need to do is tar into the first burning pool. This will make the flames grow bigger which will then disperse the rats surrounding Lucas.

Lucas will then move toward the second burning pool. This time, turn on the crank to lift the boat, allowing Lucas to pass through. Let go of the crank and go to where Lucas is.

Finally, shoot at the chain holding the drawbridge right next to where the soldier is standing. This will cause the bridge to fall over, allowing the soldier to cross it.

After a brief conversation, the guard will block your way. You want to shoot him with your Igniter and tar, and while he’s blinded, make your way to the exit on the left side. This will then unlock the Mercy achievement.