Arden (world)

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Arden/Vilis (Spinward Marches 1011)
Milieu 1116
StarportB Good: Spacecraft Construction, Overhaul, Refined fuel
Size5 Medium (8,000 km, 0.40g - 0.57g)
Atmosphere5 Thin
Hydrographics4 Wet World 40%
Population9 High (1 billion)
GovernmentC Charismatic Oligarchy
LawB Extreme Law (control of movement)
Tech Level9 Early Stellar (fusion)
See also UWP
System Details
Primary G4 V M5 V
Worlds 12
Gas Giants 0
Planetoid Belts 1
Cultural Details
Government Charismatic oligarchy
Law Level Extreme
Cultural Extension BB7B
Army Size (BEs) 15000
Economic Details
Technology Level 9
Economic Extension
ResourcesCVery abundant
Labor8Moderate (100 million)
InfrastructureC Very extensive
Importance Extension 2
Resource Units 4,608
GWP (BCr) 3,660
World Trade Number 5.5
Trade Volume (MCr/year) 9,580
Starport Details
Classification Class-B
Port Size 4
Building Capacity (Tons) 1,200,000
Port employees 815
Port passengers (annual) 35,300

Arden is a high-population world with a billion or more sophonts in population size. This world designated as an Amber Zone. Caution is advised since the world has an environment, laws, customs, life forms, or other conditions that are not well understood and might be a danger to a visitor. It is a Human dominated Non-Aligned world in the Vilis Subsector of Spinward Marches Sector.

Astrography & Planetology[edit]

Arden is a member of the Spinward Main.. This world is part of the Arden Cluster.

Arden is a moderate sized world with a thin atmosphere and rather sparse surface water. Arden was considered a good colonization candidate despite less than ideal conditions.

Binary Solar System[edit]

Arden Binary Star System
Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol)
Arden Primary

G4 V

Primary Main Sequence 0.96 4800 - 5700 0.778
Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit
AU 0.00869 0.07316 0.7 - 1.14 0.869 8.69
Orbit #  *  * 3 3 7
Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol)
Arden Companion

M5 V

Secondary Main Sequence 0.331 2000 - 2900 0.007
Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit
AU 0.00333 0.00694 0.07 - 0.11 0.333 3.33
Orbit #  *  *  * 1 5

IISS GURPS Astrographics Survey[edit]

1011 Arden (Federation of Arden)

Starport: Class III.

Diameter: 5,194 miles (8,300 km).
Atmosphere: Thin oxygen-nitrogen.
Hydrographics: 40%.
Climate: Warm.
Population: 8.23 billion.
Government: Heridtary oligarchy.
Control Level: 5.
Tech Level: 9.
World Trade Number: 4.5.

History & Background (Dossier)[edit]


Before the First Frontier War[edit]

It was a successful pocket empire during the Long Night and predated much of the Second Imperium as well. It was believed to have originally been formed as a renegade colony of Vilani outcasts.

Arden had been settled by Imperial colonists from 290 but was never incorporated into the County of Chronor and thus into the Imperium.

First Frontier War to Third Frontier War[edit]

When the County of Chronor was formally dissolved at the end of the First Frontier War, Arden was the Capital of the newly created County of Arden and remained so until the County of Arden was dissolved, becoming independent in 986 under the terms of the Armistice ending the Third Frontier War.

After the Third Frontier War[edit]

The Arden Society seeks to make Arden a major player on the interstellar stage. As well as government control, the society controls a number of industrial/commercial bodies, and has recently expanded off Arden.

The Society has an imperialist agenda, and is a major player in the move to create the Federation of Arden. It seeks to further its agenda by gaining political influence using mercantile and other economic activity.

Arden is in neutral space, between the Third Imperium and the Zhodani Consulate. Arden may use the political tensions between these to gain assistance (including via investments) in its desired industries.

Arden (and its federation) is neutral towards the Imperium. Arden imposes the same rules on Imperial ships as on independent ships passing through. These include import tariffs and other practices not permitted in Imperial space; these are not imposed on Arden-registered ships. A number of free traders have chosen to accept nominal membership in the Federation in return for the tariff concessions.

With the Zhodani/Imperial improved relations from 1119, the importance of Arden as an free port between the two powers lessened. The Federation has formally become a multi-system government, and is still a popular place for elements that thrive in an extra-national environment.

Meanwhile, the planet is undergoing a steady industrial growth, with investments in an expanding tech base. Arden is especially interested in starship technology. Its Class B starport cannot build starships, but can service, repair and maintain starships using imported parts. Several Arden based companies own and run starships, and the government maintains a respectable system squadron and some jump capable warships. However, further expansion of civilian or naval starships via import is outside Arden's economic capabilities - hence its need to develop an indigenous shipbuilding capacity.


Arden's government is a charismatic oligarchy; by general appearances, government officials are elected, but in reality, candidates can only come from the Arden Society, a small group of dedicated individuals who become members through financial or labour contributions.[2]

World Law Level[edit]

Arden has strict laws and bureaucratic procedures in place. Enforcement is vigorous and efficient, not least because the Arden Society uses its dominance of the political structure to prevent any threat to its power base.

Historical Data[edit]

As a result of this world's generally good habitability, large numbers of settlers arrived in the early years of Imperial expansion into the Spinward Marches.

Arden prospered, but did not thrive. It gradually built a stable TL–8 society and a population of about 1 billion, as well as a market for its products in the surrounding worlds.

During this period, the political structure ossified. The Arden Society became an oligarchy, with elected officials in the government being drawn solely from membership of the society. Membership to the Arden Society can be granted as a result of financial contributions or service to the ideals of the society.

Fifth Frontier War[edit]

The Star Marine Guards defending the Imperial Embassy on Arden during the Fifth Frontier War retreated to a Black Globe Safe Room when locals stormed and burned the compound. The 100-meter diameter globe neatly sliced through walls (and a few attackers) to envelope about a quarter of the installation. Over the course of a month, it resisted fire, bombs, and other attacks.

When forces from the Imperial Fleet arrived, they used a coded laser to signal the interior that all was finally safe, but to confirm the signal, an outside Marine tapped the rhythm to the Marine song: tap-tap-tap, tap-tap-tap, tap-tap-tap-tap-tap.

The interior Marines deactivated the barrier, happy at the prospect of eating something other than stored rations.

History-Era: New Era[edit]

Arden is not a signatory to the Spinward States Accord. This allows Arden to underscore its independence, as well as allowing the Federation to use Virus as a weapon. The Federation as a whole refuses Zhodani refugees, returning them to the Consulate or forwarding them towards the Regency.


This list of sources was used by the Traveller Wiki Editorial Team and individual contributors to compose this article. Copyrighted material is used under license from Far Future Enterprises or by permission of the author. The page history lists all of the contributions.