The Sirius Sector is comprised of 49 systems. 2 of them do not show up on the Nav Map and can only be visited during the Single Player Campaign; they cannot be legitimately accessed after the mission featuring them is completed.
The systems in the Sirius Sector are classified under different categories:
- House Space (Bretonia, Kusari, Liberty, Rheinland)
- Independent Worlds
- Border Worlds
- Edge Worlds
- Other systems
Liberty Space[]
The colony ship Liberty was first to arrive in the Sirius Sector. The colonists settled in what is now the center of Sirius space, where the highest number of main sequence stars and Earth-like planets existed. These mostly American colonists called the first system they settled New York, as they began the difficult task of rebuilding civilization. It would be two full years before any other Sleeper Ship arrived.
Rheinland Space[]
Two years before its arrival in the Sirius Sector, the captain of the Rheinland was awakened from hypersleep to begin preparations for planetfall. He and his officers spent weeks studying the long-range sensor logs in an effort to determine the best location for their new home. Much to their surprise, the Rheinlander officers found that the Liberty had already arrived in the sector and had made planetfall within a clutch of worlds near what would become the center of the sector. The officers decided to give the Liberty colonists their space, as it were, and instead concentrated on an area close to the Walker Nebula and rich in natural resources.
Kusari Space[]
As the sleeper ship Kusari approached the Sirius Sector, the pilots looked for evidence of high percentages of water. One interesting area, laying near a blue nebula, was composed of relatively young stars, and the crew found two planets promising high levels of water and oxygen. They made landfall on the one they called New Tokyo, five years after the arrival of the Liberty. They discovered that the New Tokyo system had plenty of water but lacked land. A culture that had left its cramped homeland far behind had to accept a cruel twist of fate once again on the other side of the universe.
Bretonia Space[]
The Bretonia sleeper ship was one of the last to arrive in Sirius, almost twenty years after the Liberty, Kusari, and Rheinland had made planetfall. By the time the Bretonia arrived, most of the resource-rich areas of the Sirius Sector had already been claimed by the passengers of the Rheinland and Kusari, while the Liberty had settled the lush planets at the sector core.
Independent Worlds[]
The six independent systems that lie between Liberty systems and the other colonies are characterized chiefly by a high level of criminal activity and space phenomena. Containing little in the way of natural resources and few habitable planets, the Independent Worlds were ignored during the initial settlement period in the Sirius Sector.
By 800 AS, all these systems have Trade Lanes and Jump Gates to connect the Houses, and some have bases and way-stations. But their level of development is almost universally less than that of the House systems, and the level of criminal activity is almost universally higher.
Northern Systems[]
Eastern Systems[]
Western Systems[]
Border Worlds[]
These system ring the major House territories, providing needed materials for the Houses as well as transit between the outer Houses and to the Edge Worlds. The Sigma systems connect Kusari to Rheinland, the Omega systems lie between Rheinland and Bretonia, and the Tau systems occupy the space between Bretonia and Kusari. Notably, Liberty does not have direct access to the Border Worlds, being buffered by the other major Houses and the Independent Worlds.
Plagued by powerful Edge World criminal organizations, these systems are not friendly places for rookie freelancers. Only more experienced pilots, with advanced ships, should dare venture into these hostile systems. The pirate problem in the Tau systems has reached crisis levels, forcing the Bretonian Armed Forces and the Kusari Navel Forces to station battleships in Leeds and Kyushu.
Omega Systems[]
Sigma Systems[]
Tau Systems[]
Edge Worlds[]
The Edge Worlds lie at the very outer reaches of the Sirius Sector, and only the most well-equipped pilots should seek to enter them. Criminal and independent factions make up much of the population. Their distance from House space makes means most commodities, such as oxygen, water, food rations, H-fuel, sell for a good price. These systems tend to feature more natural hazards due to being very remote and undeveloped. In addition, two of these systems are fully controlled by the Corsairs and Outcasts, effectively requiring any would-be visitors to be at least neutral to them first.
Hispania Space[]
The following systems are also internally designated as Hispania space:
Other systems[]
Beyond the Edge Worlds lie a small number of systems that are mainly populated by the Nomads:
The Omicron Minor and Omicron Major systems are only accessible during certain missions in the Single Player Campaign: