The Borderland subsector has grown vastly in importance in the last five hundred years. Once a backwater in a backwater, Borderland was virtually ignored by the old empires. The Vilani bypassed it entirely; the Terrans dropped a few colonies along the way, but never really developed it, and while the Sindalian Empire claimed the whole subsector as part of their domain, they never explored further than Byrni.
The Borderland was left, in the words of one scout, to fester. All sorts of bizarre rumours swirled around this sector during the Long Night and the early days of the Imperium. Some claimed that the proximity of the Great Rift, of parsec upon parsec of empty space drives Travellers insane. Others insisted that a great pirate king had his base in the Borderland, or that a mysterious alien race held sway over a number of worlds here, or that jump travel was especially unreliable and hazardous here (this last one may have some truth to it – there is a noticeably higher rate of misjumps in the Borderland than elsewhere, though Imperium scouts put this down to poor-quality fuel, and the establishment of a chain of Class A starports with first-rate refineries should put an end to the phenomenon).
The opening of trade between the Aslan Hierate and the Third Imperium transformed the Borderland. The chain of worlds between Tobia and Tlaiowaha subsectors became instantly of great strategic and commercial value. The ‘Borderlands rush’ of the 500s brought free traders, con artists, miners, developers and pirates flocking to the subsector. Ironically, raids on shipping by both Aslan and human rogues nearly put an end to the good times, but increased Imperial escorts and Aslan punitive raids helped lend confidence to the megacorporations once more.
Chief among these megacorporations is the General Development Corporation. While GeDeCo has interests across the Trojan Reach, in Borderland it is a player on par with the Imperium or the Hierate, and GeDeCo executives are treated as lords here. GeDeCo established many of the new colonies here, and drove the pirates into the wilderness once more. GeDeCo’s headquarters is on Vorito, in Tlaiowaha subsector and perilously close to the Hierate, but they have major facilities on TechWorld, Tanith, Acrid, Argona, Byrni and Falkenberg.
The Imperial/Hierate trade route runs from Tobia subsector through Cordan or Acrid, to Tech-World, and then onto Byrni. Jump-2 vessels must detour through Argon and Sperle before making a perilous stop-over at Ergo and harvesting fuel from the local gas giant.
| Name | Location | Bases | Statistics | Trade Codes | Travel Codes | Allegiance | Gas Giants |
| Acrid | 302 | | AAC1388-D | Fl Lo Ni Ht | | | G |
| Argona | 503 | | B612586-9 | Ic Ni | | | G |
| Arunisiir | 201 | | B776530-6 | Ag Ni | | | G |
| Browne | 610 | | B550A96-9 | De Hi In Po | | | G |
| Byrni | 107 | | B955699-6 | Ag Ni | | | G |
| Cordan | 401 | | A895347-9 | Ni Lo | | | G |
| Ergo | 205 | | X767500-3 | Ag Ni Lt | R | | G |
| Exe | 403 | | B300101-A | Ni Va Lo | | | G |
| Falcon | 305 | | A558448-D | Ni Ht | | | G |
| Inurin | 304 | | E668776-5 | Ag Ri Lt | | | G |
| Sperle | 404 | | BA8A78A-7 | Ri Wa | | | |
| Tanith | 301 | | A589342-B | Ni Lo | | | G |
| Tech-World | 204 | | A555154-E | Ni Lo Ht | | | |
| Umemii | 501 | | C521877-7 | Na Po | | | G |
| Villane | 609 | | B100634-8 | Na Ni Va | | | G |
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