There were goblins in all the seas of the galaxy. Some were so old that they existed before some other planets. They used to have their presence known Tina lot of people initially. But like all goblins, both sea and land, their presence became limited in front of others. There have hardly been any instances where they had their presence known for a long time. Some of their presence was felt when they attacked the kingdom with Kurkin in Andora and when they caused the submarines of Sergey to submerge in planet 757. There was also a few goblins in the planet of 111, where Sergey had crashed his ship
But he was not the first man, nor the last to inhabit the caves. There was a man named Augustus Barrows, mostly from the planet Andora, who had found himself isolated in the planet 111, centuries ago. He was most probably transported there by Thandibus, really how he landed there is not known for certainity. A late brooding man with beard and a powerful knuckle. He could knock out a goblin with ease with those powerful knuckles.
I'm those days, there was large water basins in the desert. In those waters, the goblins existed. And also in the volcanoes , the goblins existed. However like today, there were no trees in the planet. It was still a desert! Those volcanic goblins never really came out and were not much of a problem to Barrow, but the water goblins caused him a lot of trouble. He had to invent a lot of new ways to cross the water without getting into it. Mostly relying on large stones and physics.