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Styx neighbouring systems
Styx neighbouring systems
System information
X:Y Coordinates 25.84 : 25.54[e]
Spectral class F8IV[1]
Planets 3[1]

Note: X and Y are coordinates (light years on XY plane) relative to Terra at (0, 0)

Orbital view
Orbital view
System position 1[1]
Jump point
12 days[1]
Moons 3 (Kronus, Nirvana, Void)[1]
Surface gravity 0.83[1]
Atmospheric pressure Standard (Breathable)[1]
Equatorial temperature 29°C[1]
Surface water 79%[1]
Highest native life Mammals[1]
Reference Year 3130[1]
Ruler Heather Grenistolski (Governor)[1]
Garret Trelesta (Planetary Legate)[1]
Capital Sunder Falls[1]
Population 2,018,000,000[1]

Political Affiliation[edit]

Planetary Info[edit]

Styx is a world of storms, flash floods, and mudslides, wild weather patterns caused by the gravitational pull of the planet's three moons. The planet has three continents, Epimethius, Gehenna and Perdition. The first colonists on Styx established their cities on the open plains of Epimetheus, the main continent, because this area received the weakest storms.[1] Styx was one of the worlds abandoned by the Terran Alliance following the Outer Reaches Rebellion and the Demarcation Declaration of 2242,[2] but Styx was incorporated into the Terran Hegemony within a century, becoming one of the worlds within the Lone Star Province.[4][8]

A few years after these first cities were established, geologists found extensive radioactive ores and other mineral resources that caused a few mining companies to arrive on-world; the output from these mines contributed significantly to the Terran Hegemony's economy, to the extent that the neighboring Draconis Combine wanted the world. This ongoing tension resulted in the first battle between BattleMechs.[1]

In 2443 the DCMS sent a company of tanks to Styx to raid the warehouses and refineries, hopefully capturing them intact for use by the Combine. The defenders, a lance of Terran Hegemony BattleMechs from the 801st Heavy Armored Regiment, met the company of tanks with infantry support outside the city of Barbados. The muddy plains impeded the Kuritan armor, while the 'Mechs simply strode around with no problem; the net result was the complete destruction of the raiding Draconis unit, and the emergence of the BattleMech as the preeminent combat unit.[1][5]

After the fall of the Star League, the Draconis Combine took control of the world and kept it until the Word of Blake to the Jihad.

On 21 May 3027 the JumpShip Bifrost abducted the passenger DropShip Silver Eagle to an asteroid base in the Styx system, precipitating the Silver Eagle Incident. By this time, the Styx system was mined out after four centuries of intensive mining operations. It was owned by Viscount Robert Monahan, who sold his Styx mining enterprise to one Wayland Smith in late 3025. Smith duped investors into believing that the system was in fact not yet mined out, by allowing their spies to access false reports in his computer systems (which they believed they had hacked). He then escaped into the Lyran Commonwealth with some 25 million C-Bills. The system had become a refuge for undesirables, which was tolerated by the Draconis Combine.[45]

Forces from the allied coalition assembled by Devlin Stone were attempting to liberate Styx in May 3077 as a part of Operation SCOUR when a Blakist ambushed badly damaged the 1st New Ivaarsen Chasseurs. In response, on the 14th of May the commander of the 19th Arcturan Guards authorised the bombardment of the base complex housing the Styx Protectorate Militia with tactical nuclear weapons. The resulting bombardment collapsed a number of mines in the area and destroyed the entire of the city in which the base complex lay. When challenged, the Lyran commander of the 19th Arcturan Guards remarked "they're just Dracs, nobody important" - a comment which would become infamous in the annals of the liberation.[46] The words spoken by Leftenant General Lucas Hoffman attracted outrage in the local media, and most likely elsewhere. Casualties from the two tactical nukes detonated as airbursts over the capital city of Styx amounted to at least 15,000 civilians.[47]

Military Deployment[edit]



Industrial Centers[edit]

Nearby Systems[edit]

Systems within 60 light-years (distance in light years)
Closest systems first:
Athenry 13.7 Saffel 13.9 Nirasaki 14.7 Deneb Algedi 15.8 Inglesmond 16.5
Pike IV 19.4 Asta 21.7 Dieron 24.3 Fomalhaut 25.1 Kervil 28.7
Altair 28.8 Nashira 29.85 Chaville 29.95 Telos IV 32.8 Quentin 33.3
New Stevens 35.1 Dyev 35.4 Imbros III 36.5 Northwind 36.7 Lockdale 37.4
Yorii 38.3 Caph 39.0 Al Na'ir 39.9 Rocky 43.29 Killbourn 43.33
Kuzuu 43.9 Epsilon Indi 44.463 Lambrecht 44.464 Pokhara 45.2 Helen 47.1
Errai 48.7 Terra 51.38 Bryant 51.44 Rigil Kentarus 51.7 Ascella 53.8
Epsilon Eridani 54.3 Murchison 54.5 Lone Star 55.5 New Home 56.9 Biham 57.1
Miyazaki 57.6 Keid 58.4 Small World 58.4 Moore 58.7


  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 1.14 1.15 1.16 1.17 1.18 1.19 1.20 Dark Age: Republic Worlds (3130), p. 41, "Styx World Profile"
  2. 2.0 2.1 Handbook: House Marik, p. 16, "Free Worlds League Founding [2271]"
  3. Handbook: House Kurita, p. 18, "Draconis Combine Founding" - 2319
  4. 4.0 4.1 Handbook: House Steiner, p. 13, "Lyran Commonwealth Founding [2341]"
  5. 5.0 5.1 Era Digest: Age of War, p. 5, "The New Knights"
  6. Handbook: House Steiner, p. 25, "Lyran Commonwealth after Age of War [2571]"
  7. Handbook: House Kurita, p. 31, "Draconis Combine after Age of War - 2571"
  8. 8.0 8.1 Historical: Reunification War, p. 159, "Inner Sphere - 2596"
  9. Era Report: 2750, p. 37, "Inner Sphere - 2750"
  10. Field Manual: SLDF, Inner Sphere - [2764]
  11. Historical: Liberation of Terra Volume 1, p. 11, "Inner Sphere - 2765"
  12. 12.0 12.1 Historical: Liberation of Terra Volume 1, p. 138, "Operation LIBERATION Wave 1 [July 2772 - December 2774]"
  13. Handbook: House Kurita, p. 43, "Draconis Combine after First Succession War - 2822"
  14. Handbook: House Steiner, p. 36, "Lyran Commonwealth after First Succession War [2822]"
  15. Historical: Liberation of Terra Volume 2, p. 122-123, "Inner Sphere - 2822"
  16. Handbook: House Kurita, p. 53, "Draconis Combine after Second Succession War - 2864"
  17. Handbook: House Steiner, p. 40, "Lyran Commonwealth after Second Succession War [2864]"
  18. House Kurita (The Draconis Combine), "Draconis Combine Map - [3025]"
  19. Handbook: House Kurita, p. 64, "Draconis Combine after Third Succession War - 3025"
  20. House Steiner (The Lyran Commonwealth), Lyran Commonwealt Map [3025]
  21. Handbook: House Steiner, p. 47, "Lyran Commonwealth after Third Succession War [3025] Map"
  22. Handbook: House Kurita, p. 66, "Draconis Combine after Fourth Succession War - 3030"
  23. Handbook: House Steiner, p. 56, "Lyran Commonwealth after Fourth Succession War [3030] Map"
  24. Historical: War of 3039, p. 133, "Inner Sphere - 3040"
  25. Handbook: House Kurita, p. 68, "Draconis Combine after War of 3039 - 3040"
  26. Handbook: House Steiner, p. 59, "Lyran Commonwealth after War of 3039 [3040] Map"
  27. Era Report: 3052, p. 11, "Inner Sphere - 3050"
  28. Era Report: 3052, p. 23, "Inner Sphere - 3052"
  29. Handbook: House Kurita, p. 71, "Draconis Combine after Operation REVIVAL - 3052"
  30. Handbook: House Steiner, p. 61, "Lyran Commonwealth after Clan Invasion [3052] Map"
  31. Era Report: 3062, p. 11, "Inner Sphere - 3057"
  32. Era Report: 3062, p. 29, "Inner Sphere - 3063"
  33. Handbook: House Kurita, p. 74, "Draconis Combine after FedCom Civil War - 3067"
  34. Handbook: House Steiner, p. 70, "Lyran Commonwealth after FedCom Civil War [3067] Map"
  35. Jihad: Final Reckoning, p. 42, "Inner Sphere Map - [October 3067]
  36. Jihad Secrets: The Blake Documents, p. 65, "Inner Sphere [3075]"
  37. Field Report: DCMS, p. 21, "Draconis Combine Mustered Soldiery Deployment Map - August 3079"
  38. Field Report: LAAF, p. 19, "Lyran Alliance Deployment Table [3079]"
  39. Jihad: Final Reckoning, p. 63, "Inner Sphere Map - [March 3081]"
  40. Field Manual: 3085, p. 127, "Inner Sphere Map - [October 3085]"
  41. Map of the Inner Sphere 3130
  42. Era Report: 3145, p. 11, "Inner Sphere Map - [3135]"
  43. Era Report: 3145, p. 39, "Inner Sphere Map - [3145]"
  44. Field Manual: 3145, p. VI, "Inner Sphere - 3145"
  45. Warrior: En Garde, chapters 42-43, 44-45, 47, 49-50, 54, 56
  46. 46.0 46.1 Jihad: Final Reckoning, p. 57, "The Jihad In Review"
  47. Jihad Hot Spots: Terra, p. 31-32, "Outrage"
  48. Handbook: House Kurita, p. 166, "Styx Mining"