In Honkai: Star Rail, Night in the Big Mine 3 is a Jarilo-VI adventure mission , during which you will again have to solve several puzzles with trolleys, thereby passing the operator's test. If you're having trouble solving these puzzles, check out our guide.
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Night at the Big Mine 3 walkthrough
How to start the quest
It should start automatically on the next calendar day (wait for the server to reset) after completing the previous mission of the chain called “Night in the Big Mine 2”. Again, go to the operator in the Underdark and chat with him. Start moving the carts to the right stops to get chests later.
First minecart checking puzzle
Run to the empty minecart and immediately push it to the yellow stopper. Then double-click on the 1st switch and hit the cart again so that it goes on the right path and stands at the fork, as shown in the screenshot below.
Then run to the loaded minecart and just push it so it goes straight to the yellow stop at the end and also stopped at the fork.
Pull the 2nd lever and push the empty cart towards the crates of crystals. Load it with ore.
Return to the loaded minecart at the other end of the track. Interact with the 1st handle twice, and then push the cart, bringing it to the first yellow stopper. Then again pull the 1st lever twice and bring the cart to the end stop.
Tap the 1st switch again twice, then return to the previously filled minecart and push her. She will go straight to the yellow stopper, which will lead to the completion of this test. Talk to the operator to receive your reward and start the next puzzle.
Second minecart check puzzle
First, pull the 2nd lever (in the middle), and then push the first loaded cart so that it stands near the usual stop and does not interfere with you.
Move to the 3rd switch (next to the empty minecart) and click on it. Do the same with the 1st and 2nd levers. Now push the empty cart towards the far normal stop as shown in the picture below.
Pull the 3rd handle and send another loaded cart to the stop where the empty cart used to be . Then click on the 3rd and 1st switches and push this loaded cart to the yellow stop (see the second screenshot below).
Pull the 1st lever again and push the empty cart, bringing it to the yellow stop at the other end. Then interact with the 3rd switch and send the cart straight to the blue dead end.
Now pull the 1st and 3rd levers and send the loaded cart near the yellow stop to the other yellow stop as shown in the picture below.
At the end, click on the 2nd switch and push the last loaded cart to the yellow stop. As a result, you will complete the challenge and will be able to collect the reward to take on the final puzzle.
Third minecart check puzzle
Pull 1st and 2nd th lever, and then push the empty cart so that it stands next to the second similar cart.
Press the 1st switch again and push the loaded minecart to stop near the yellow stop. Now click on the 2nd and 1st handles and guide the loaded cart towards the regular stop. All necessary actions are shown in the screenshot below.
Next, pull the 2nd lever and run to the first empty cart. Stand in the place shown in the screenshot below and push the cart (if it says that the path is blocked, then try to stand in different places and choose the first point), sending it to the far yellow stop.
Run to the 1st handle again and pull it. Move the empty cart to the ore crates, and then load it with crystals. Then return it back to the yellow stopper. If you see the sign about blocking the tracks again, then try to stand right behind the cart, and then push it.
Click on the 1st switch again and push the loaded cart so that it rests on the empty cart. Then pull the 3rd lever and hit the cart again, bringing it to the correct yellow stop.
Click on the 3rd switch and push the empty cart to the other end. Pull the 1st lever and steer the cart towards the loading area – put the ore in it, and then return it back to the yellow stopper. The image below shows all the necessary steps.
Next, interact with the 2nd lever and send the loaded cart shown in the screenshot below to the newly loaded cart so that it stops at the fork. Press the 2nd switch again and push the cart back so that it stands near the third yellow stop.
This completes the challenge. Talk to the senior operator for the last time, receiving a luxurious chest at the end. You will also unlock the Sisyphus of the Mines trophy. This task will come to an end. As a reward, you will receive 100 exploration experience, 30 star jade, 5,000 credits, and 1 condensed ether.
