Means "formidable fortress" in Russian. An impregnable fortress build with the investment of a vast amount of funds from Colonel Volgin. The facility has an arsenal in the center, a prison camp to the southeast, an armory to the northwest, and a food storage warehouse to the northeast. In the arsenal, research into new weapons is carried out principally by Granin and Sokolov. The Flying Platform and Shagohod were also developed here.