Because Separatist ships were designed primarily for use by droids, and because the Malevolence II was only half-constructed when discovered in 1 ABY, many of the ship’s compartments have been removed or made more amenable to organic life. While the Malevolence II still utilizes thousands of droids for its staff, the interior has been converted into a functional shadowport mobile city, in which hundreds of passengers come and go and even can rent rooms or their very own apartments to stay in.
The Malevolence II was discovered in 1 ABY in secret Separatist facility on Serenno, only half-completed, with no functional ion cannon. Tyrellius Dooku, underworld entrepreneur and great-nephew of Count Dooku, spent years, millions of credits and many droid man-hours to craft it into a mobile shadowport, the capital of his entrepreneurial underworld business empire.
Not designed for battle, the Malevolence II is instead designed to be a base of operations for underworld types, free from the prying eyes of the Empire, New Republic, and now First Order. With a functional city contained within, the marketplace is well-known throughout the underworld as convenient one-stop shopping for anyone who needs weapons, gear, info, or mercenaries for a job.
The Malevolence II is secretive and always on the move. Entry to the Malevolence II (including knowledge of its stops) requires an extensive vetting process for admittance to the New Separatists guild. The Malevolence II itself is a designated neutral zone. Any violence or bad faith transactions on the Malevolence II itself will result in immediate penalties, up to and including suspension or expulsion from the New Separatist guild or even execution or a bounty placed on the individual’s head.
New Separatist members are given badges bearing the New Separatist symbol that when linked to a ship’s navigation charts and computers, provide updates and coordinates on the Malevolence II’s shifting location. Such badges are highly coveted but highly monitored, with the Malevolence II’s droid staff able to determine through subtle differences in provided coordinates the identity of anyone who leaks the coordinates to the authorities, but thankfully it has never come to that.