Sometimes, a partially explored region would give out great treasures. But every time it would, it'd only be after a fierce competition.
Such competition was a perfect opportunity to fight geniuses across the solar system.
The winner's fame would spread to every corner of the federation.
Many great geniuses in the past built their fame here.
One such genius was Julius Xander. In the not-so-distant past, he entered the ruins as a level 9.
He found one of the many 'passes' to the special location in the partially explored region and fought everyone for the treasure.
He took home the 'Guardian Palace', a treasure only weaker than artifacts.
But it wasn't always a level 9. Sometimes, it was a level 7, the other times, it was a level 8.
These special regions typically had 'restrictions' that limited one's level and leveled the playing field.
Of course, sometimes, it was a test of plain strength.