The Isirah Star System is unusual for a Core Worlds system in that it has no inhabited planets, but rather populated stations controlled by the Persean League and pirates.

Isirah, Blue Giant[edit | edit source]

Isirah

A very high temperature and luminosity O-type star. Although extraordinarily massive this star is short-lived due to the hellish rate at which it fuses its constituent elements. It will quickly, for a star, explode as a supernova which may briefly outshine entire galaxies before transforming into a black hole or neutron star. The energies unleashed from the star's raging fusion heart erupt in powerful stellar winds that will strip the atmosphere from closely orbiting planets - and the hull from any starships that linger nearby.

–In-Game Description

  • Center of the Isirah Star System

Surtr (Isirah I), Volcanic World[edit | edit source]

Isirah I: Surtr

A geologically unstable planet without a permanently formed crust. Glowing fissures and active volcanoes litter the surface, the magma they spew forth combining to form flows that travel hundreds of kilometers across the charred surface.

–In-Game Description

  • Planetary Conditions
Rareore abundant.png
Abundant Rare Ore Deposits: Abundant transplutonic deposits lay within the crust of Surtr, enough to fuel the ambitions of any worthwhile warlord or magnate.
+1 transplutonic ore production (Mining).
Ore ultrarich.png
Ultrarich Ore Deposits: Mineral wealth exists on Midas-touched Surtr beyond the wildest fantasies of the legendary mining megacorps of the Domain era.
+3 ore production (Mining).
Atmosphere toxic.png
Toxic Atmosphere: The atmosphere of Surtr is exceptionally toxic and corrosive, abrading unprotected surfaces and requiring the hermetic sealing of any inhabited spaces.
+50% hazard rating.
Tectonic extreme.png
Extreme Tectonic Activity: Surtr's crust roils chaotically with extreme quakes and cataclysmic volcanism events. Any operations will require exceptional care and use of many-times redundant warning systems so that the worst dangers can be avoided. Construction on this world can only ever be considered semi-permanent.
+50% hazard rating.
Hot extreme.png
Extreme Heat: Extreme heat necessitates specialized equipment and protocol to safely operate on Surtr, seriously complicating logistics, life support, and long-term stability of infrastructure.
+50% hazard rating.
Gravity high.png
High Gravity: The force of gravity on the surface of Surtr is crushingly high. Humans require powered exoskeletons for regular movement and find even basic actions exhausting. Continual habitation is grueling at best. All operations take place with a heightened danger of falls and - if specialized engineering is not performed with adequate paranoia - structural collapse.
+50% hazard rating.
-10% accessibility.
  • Hazard Rating: 300%
  • Orbits Isirah

Gilling (Isirah II), Volcanic World[edit | edit source]

Isirah II: Gilling

A geologically unstable planet without a permanently formed crust. Glowing fissures and active volcanoes litter the surface, the magma they spew forth combining to form flows that travel hundreds of kilometers across the charred surface.

–In-Game Description

  • Planetary Conditions
Rareore rich.png
Rich Rare Ore Deposits: Thick bands of transplutonics spread with glorious profusion through the crust of Gilling, promising great and potent power to they who would but reach out and take them.
+2 transplutonic ore production (Mining).
Ore rich.png
Rich Ore Deposits: Rich mineral deposits form a thick lattice within the crust of Gilling but require an ambitious industrialist to exploit them for fabulous profit.
+2 ore production (Mining).
Atmosphere toxic.png
Toxic Atmosphere: The atmosphere of Gilling is exceptionally toxic and corrosive, abrading unprotected surfaces and requiring the hermetic sealing of any inhabited spaces.
+50% hazard rating.
Tectonic extreme.png
Extreme Tectonic Activity: Gilling's crust roils chaotically with extreme quakes and cataclysmic volcanism events. Any operations will require exceptional care and use of many-times redundant warning systems so that the worst dangers can be avoided. Construction on this world can only ever be considered semi-permanent.
+50% hazard rating.
Hot extreme.png
Extreme Heat: Extreme heat necessitates specialized equipment and protocol to safely operate on Gilling, seriously complicating logistics, life support, and long-term stability of infrastructure.
+50% hazard rating.
  • Hazard Rating: 250%
  • Orbits Isirah

Fjalar (Isirah II-A), Volcanic World[edit | edit source]

Isirah IIA: Fjalar

A geologically unstable planet without a permanently formed crust. Glowing fissures and active volcanoes litter the surface, the magma they spew forth combining to form flows that travel hundreds of kilometers across the charred surface.

–In-Game Description

  • Planetary Conditions
Rareore sparse.png
Sparse Rare Ore Deposits: A few sparse transplutonic ore deposits exist here, but they are more of academic than industrial interest for their extraction is barely economical.
-1 transplutonic ore production (Mining).
Ore moderate.png
Moderate Ore Deposits: Fjalar contains moderate ore deposits that, under the right economic conditions, could be profitably exploited.
No bonuses or penalties to ore production (Mining).
Atmosphere thin.png
Thin Atmosphere: A rarefied atmosphere clings determinedly to Fjalar's surface.
+25% hazard rating.
Tectonic.png
Tectonic Activity: The surface of Fjalar is unstable and prone to violent quakes. Any structures require special reinforcement and any excavation will involve a great deal of risk.
+25% hazard rating.
Hot extreme.png
Extreme Heat: Extreme heat necessitates specialized equipment and protocol to safely operate on Fjalar, seriously complicating logistics, life support, and long-term stability of infrastructure.
+50% hazard rating.
  • Hazard Rating: 200%
  • Orbits Gilling

Galar (Isirah II-B), Barren World[edit | edit source]

Isirah IIB: Galar

Radiation from the nearby star ravages the surface of this world due to the lack of an atmospheric ozone layer. No significant activity. No indigenous life forms.

–In-Game Description

  • Planetary Conditions
Rareore moderate.png
Moderate Rare Ore Deposits: Galar contains modest transplutonic deposits that, with sustained industry and investment, could be profitably tapped.
No bonuses or penalties to transplutonic ore production (Mining).
Ore abundant.png
Abundant Ore Deposits: Abundant, widespread, and profitably extractable ore deposits can be found on Galar.
+1 ore production (Mining).
Atmosphere none.png
No Atmosphere: No appreciable atmosphere exists on Galar. Its surface is exposed to the hard weathering of space, a steady drizzle of radiation and micrometeorites.
+50% hazard rating.
Hot extreme.png
Extreme Heat: Extreme heat necessitates specialized equipment and protocol to safely operate on Galar, seriously complicating logistics, life support, and long-term stability of infrastructure.
+50% hazard rating.
  • Hazard Rating: 200%
  • Orbits Gilling

Utgarda's Wall (Asteroid Belt)[edit | edit source]

  • Orbits Isirah

Corb (Isirah III), Volcanic World[edit | edit source]

Isirah III: Corb

A geologically unstable planet without a permanently formed crust. Glowing fissures and active volcanoes litter the surface, the magma they spew forth combining to form flows that travel hundreds of kilometers across the charred surface.

–In-Game Description

  • Planetary Conditions
Rareore moderate.png
Moderate Rare Ore Deposits: Corb contains modest transplutonic deposits that, with sustained industry and investment, could be profitably tapped.
No bonuses or penalties to transplutonic ore production (Mining).
Ore rich.png
Rich Ore Deposits: Rich mineral deposits form a thick lattice within the crust of Corb but require an ambitious industrialist to exploit them for fabulous profit.
+2 ore production (Mining).
Atmosphere thin.png
Thin Atmosphere: A rarefied atmosphere clings determinedly to Corb's surface.
+25% hazard rating.
Tectonic.png
Tectonic Activity: The surface of Corb is unstable and prone to violent quakes. Any structures require special reinforcement and any excavation will involve a great deal of risk.
+25% hazard rating.
Hot extreme.png
Extreme Heat: Extreme heat necessitates specialized equipment and protocol to safely operate on Corb, seriously complicating logistics, life support, and long-term stability of infrastructure.
+50% hazard rating.
Gravity low.png
Low Gravity: Gravity is exceptionally low, though significantly above zero-g, on the surface of Corb. Workflow and operation of (relatively) heavy machinery is complicated by the non-standard procedures required to deal with altered conditions of friction, weight, and pressure dynamics.
+25% hazard rating.
+10% accessibility.
  • Hazard Rating:
  • Orbits Isirah in an asteroid belt between Ugarda's Wall and the Disk of Vosud

Corb Accretion Swarm (Asteroid Field)[edit | edit source]

  • Trails Corb

Kapteyn Starworks[edit | edit source]

Kapteyn Starworks

This sprawling zero-g industrial station was built to-spec to serve the needs of the Eridani-Utopia Corporation and modified heavily in the cycles since. The station was taken by the warlord Leonis in the blazing conquests of cycle 47 and has remained in the hands of one or another pirate leader for much of recent history.

–In-Game Description

  • Station Conditions
Population04.png
Population: Tens of thousands of people live on Kapteyn Starworks.
Free port.png
Free Port: The local port authority imposes almost no regulation on what cargo is traded. Immigration controls are likewise relaxed, resulting in a greater in-flow of people, albeit sometimes of a more questionable character. This may cause other factions to view this colony with distrust.
  • Hazard Rating: 100%
  • Pirate Market
    • Population & Infrastructure: The basic infrastructure required to support a given population, from rickety orbital hab-modules to megacities and everything between.
      Tens of thousands of people live on Kapteyn Starworks.
    • Spaceport: Facilities for loading and unloading cargo and performing basic starship repairs. A colony without a spaceport is virtually inaccessible to interstellar trade.
    • Refining: Smelting plants here convert ores and transplutonic ores into metals and transplutonics, respectively. Teleoperated robotics are used to handle the most dangerous tasks, usually.
    • Orbital Works: Centralized manufacturing infrastructure for production of heavy industrial equipment, supplies, and weapons. Also capable of producing barely-spaceworthy starships; a nanoforge can be installed to improve production quality. Upgraded with an orbital component that further facilitates ship construction, resulting in fewer manufacturing defects.
    • Orbital Station - Low Tech: A low-tech space station, featuring heavy armor and medium firepower. Must be reduced before invasions or bombardment can be attempted.
    • Heavy Batteries: Armoured subsurface batteries supplement a dispersed network of small, hidden weapon installations. Ground-based batteries are capable of truly awesome firepower, though it only manifests by making ground operations more difficult, as no starship captain would be foolish enough to get within their firing envelopes.
    • Patrol HQ: The requisite hangars, maintenance bays, command/control center, barracks, and logistics operations required to project force throughout a star system. Once established, militarized patrols will hunt pirates and protect friendly convoys.
  • Shares its orbit with Corb

Makeshift Sensor Array[edit | edit source]

Makeshift Sensor Array

Built using the best technology available in the Sector, a makeshft sensor array is nonetheless capable of passively monitoring the entire star system and has a transmitter capable of real-time, faster-than-light data transmission to friendly fleets within. The data is useful to supplement the regular sensor readings made by fleets.

–In-Game Description

  • Shares its orbit with Corb

Makeshift Comm Relay[edit | edit source]

Makeshift Comm Relay

An imitation of the Domain-era counterpart, constructed using what passes for the state of the art in the Sector. Nonetheless, a makeshift comm relay is capable of facilitating faster-than-light comms between star systems, even if the transmission speeds are less than ideal and the occasional phantom comm streams picked up give nightmares to even the most seasoned operators.

–In-Game Description

  • Shares its orbit with Corb

Isirah Gate (Inactive Gate)[edit | edit source]

Isirah Gate

A solid ring of adamantine material, derelict of a former age.

–In-Game Description

  • Shares its orbit with Corb

Laicaille Habitat[edit | edit source]

Laicaille Habitat

Another habitat which lay in the path of the warlord Leonis' conquests, Laicaille habitat was seen, was conquered, and then left in the grip of a loyal lieutenant. This short-lived rule was overturned by a subsequent (and far less fearsome) pirate king backed by the Armada of Kazeron during a Persean League border conflict with the Luddic Church. This minor addition to the League was built on an asteroid prospecting industry, though is now dominated by Kazeron-owned military shipyard combines. Laicaille Habitat's nightlife has something of a reputation.

–In-Game Description

  • Station Conditions
Population04.png
Population: Tens of thousands of people live on Laicaille Habitat.
Ore abundant.png
Abundant Ore Deposits: Abundant, widespread, and profitably extractable ore deposits can be found on Laicaille Habitat.
+1 ore production (Mining).
  • Hazard Rating: 100%
  • Persean League Market
    • Population & Infrastructure: The basic infrastructure required to support a given population, from rickety orbital hab-modules to megacities and everything between.
      Tens of thousands of people live on Laicaille Habitat.
    • Spaceport: Facilities for loading and unloading cargo and performing basic starship repairs. A colony without a spaceport is virtually inaccessible to interstellar trade.
    • Mining: Metal and metalloid ores, organics, and volatile compounds all require heavy equipment, special infrastructure, and a specialized workforce to extract. The harsh work attracts a certain type, and an administration that's not willing to look the other way now and again may find itself running short of willing personnel.
    • Orbital Station - Low Tech: A low-tech space station, featuring heavy armor and medium firepower. Must be reduced before invasions or bombardment can be attempted.
    • Heavy Batteries: Armoured subsurface batteries supplement a dispersed network of small, hidden weapon installations. Ground-based batteries are capable of truly awesome firepower, though it only manifests by making ground operations more difficult, as no starship captain would be foolish enough to get within their firing envelopes.
    • Military Base: These facilities enable force projection between star systems. Any such military undertaking is a massive logistical operation requiring coordination of dozens, perhaps hundreds of star ships and thousands of officers, crew, and soldiers.
  • Shares its orbit with Corb

Disk of Vosud (Stellar Ring)[edit | edit source]

  • Orbits Isirah

Norvia (Isirah IV), Frozen World[edit | edit source]

Isirah IV: Norvia

Water or ammonia ice is the primary surface feature of this world. Below the surface, there may be a liquid ocean or a rocky crust.

–In-Game Description

  • Planetary Conditions
Ore abundant.png
Abundant Ore Deposits: Abundant, widespread, and profitably extractable ore deposits can be found on Norvia.
+1 ore production (Mining).
Volatiles diffuse.png
Diffuse Volatiles: Diffuse volatiles can be found here, and may be sufficient for industrial extraction.
No bonuses or penalties to volatiles production (Mining).
Cold extreme.png
Extreme Cold: Extreme cold necessitates specialized equipment and protocol to perform operations safely on Norvia, complicating logistics, life support, and infrastructure.
+50% hazard rating.
  • Hazard Rating: 150%
  • Orbits Isirah

Nott (Isirah IV-A), Frozen World[edit | edit source]

Isirah IVA: Nott

Water or ammonia ice is the primary surface feature of this world. Below the surface, there may be a liquid ocean or a rocky crust.

–In-Game Description

  • Planetary Conditions
Ore sparse.png
Sparse Ore Deposits: A few sparse ore deposits exist here, but they are more of academic than industrial interest for their extraction is barely economical.
-1 ore production (Mining).
Volatiles abundant.png
Abundant Volatiles: Abundant volatiles may be economically extracted from Nott.
+1 production (Mining).
Weather extreme.png
Extreme Weather: Violent storms bristling lightning rage across the skies of Nott. Though a sublime beauty from orbit, this produces harsh surface conditions making transportation and habitation highly inconvenient.
+25% hazard rating.
Cold extreme.png
Extreme Cold: Extreme cold necessitates specialized equipment and protocol to perform operations safely on Nott, complicating logistics, life support, and infrastructure.
+50% hazard rating.
  • Hazard Rating: 175%
  • Orbits Norvia

Groombridge Habitat[edit | edit source]

Groombridge Habitat

Swept up by the warlord Leonis in the conquests of cycle 47, the fantastically corrupt lieutenant left in place made a habit of throwing aggrieved local leaders out the airlock. Within three cycles, anyone with exceptional wealth, skill or sense had left, and the major station systems were failing entirely. Groombridge Habitat was since stripped of anything of value that could be put in a cargo hold, then abandoned.

–In-Game Description

  • Orbits Isirah

Fringe Jump-point[edit | edit source]

  • Orbits Isirah

Trivia[edit | edit source]

  • Surtr is a jotun of Muspelheim in Norse mythology, who is fated to consume the world in fire at Ragnarok.
  • Gilling is a jotun in Norse Mythology.
  • Fjalar ang Galar are dwarven brothers in Norse mythology, who murder Gilling.
  • Utgarda-Loki is a jotun in Norse mythology, who challenges Thor, Loki, and Thor's two companions to a series of impossible feats in order to earn his hospitality.
  • Corb is a Fomorian, a race of giants in Irish mythology.
  • Nott is the personification of night in Norse Mythology, whose father is Narvi.
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