But not alarmed you because Krobus seems a little scary at first, because of the strange black creature: Krobus is a shadow man. Later you can help their confrontation - Dwarf and Krobus. With these tips, you can quickly reach the key to the sewer:

But pay attention increasingly on the worms in the soil. Gunther dosnt give me the rusty key during the cutscene after I donated 60 items to the museum? Gunther dosnt give me the rusty key during the cutscene after I donated 60 items to the museum? Here you will hear the conversation between the children and Jas Vincent, playing at the entrance to the sewer. Please help y’all. - South below Marnie's Ranch and east of Forrest Cindersnap

I'ts been 2 weeks and I still havent recieved it. Both entrance of the drains lead to the same place. It’s a little …

In the Stardew Valley, the entrance to the sewer line can be found rather quickly.

So, on Winter 28, year 2, I donated my sixtieth item, which should unlock the rusty key. I talked to Gunther and he only gave me the translation guide. It takes effort to catch the tough fish. However, the sixtieth item I donated was the last dwarf’s scroll I needed to get the translation guide.

There you will learn that you need a key to enter the sewage system and Gunther is holding this key. But until then, it is a long and arduous journey. So I found the little kids playing down by the sewer and one of them mentions that Gunther has the Sewer key. It's an old key that's been sealed in the museum vault for at least 100 years. In it are mostly rare rocks, which you can donate to the museum. The morning after you donate 60 items to the Museum, Gunther will visit you to thank you and give you the Well, I just wanted to stop by and thank you in person for all the wonderful artifacts and minerals you've discovered... you've done so much for one person! Eerie noises confirm this information. Otherwise I don't see why not!

Now nothing stands on your way and you can explore a new area of Stardew Valley. - Despite these tips, it will take a long time to complete 60 artifacts. You can buy rare items from Krobus.

Question . Early in the game you will involved in a cut scene.

If you go directly to dwarf in the mine, then you will be suspicious, because he thinks Krobus have sent you as a spy against. The solution is simple: Once you have donated 60 artifacts and minerals to the museum, you will receive the rusty key as a reward from Gunther - it is your ticket to the sewer. What you will find in the sewers of Stardew Valley? He'll reward players as they reach milestones in number of donations. He operates the entire Stardew Valley Museum & Library, that was once prosperous in artifacts until the previous owner took everything with him.

It is obtained from Gunther in a cutscene after donating 60 items to the Museum. Please help y’all. He doesn't accept friendship gifts, and instead accepts donations to the museum. Whatever the reason, but here you can find also artifacts and books, come to the museum. In fact, I've just received a letter from the office of the regional secretary of artifacts... We're being honored with the coveted 'golden shovel' award for our significant contributions to the field! The morning after the 60th item is donated, he will greet you at your front door, thank you for your contributions to the museum, and give you the key. Gunther will give you the sewer key the day after (or a few days after) you donate 60 items. I only ever see him in his museum and he only talks to me about donating stuff.