Derwyll's Castle 2

The old muntain castle on the moon called Muriest Darm orbiting around its planet Derwyllus. It was built by unknown civilization and it served as some kind of gate into something what is under the surface of whole asteroid. Archeological studies are necessary.

It is only one of the three months orbiting around this planet and discovered so far.

On the second moon called Nigror is a human colony.

This is a large, open arena separated into three main areas.