Arcadia (LC)

This article is about the Lyran Commonwealth planetary system. For other uses, see Arcadia.

Arcadia (LC) 3151.svg
System Information
X:Y Coordinates-186.342 : -8.057[e]

The Arcadia system was the location of at least one habitable world and as of 3145 was located in the Wolf Empire.[1][2]

System Description[edit]

Arcadia is located near the Gienah and Launam systems.[3]

System History[edit]

Originally colonized by the Terran Alliance during the First Exodus from Terra,[4] the Arcadia system was depopulated or abandoned during the Age of War.[5][6] Arcadia was recolonized by the Lyran Commonwealth during the Reunification War.[7]

Political Affiliation[edit]


Atmospheric pressure(Breathable)[citation needed]

Planetary History[edit]

Star League Era[edit]

The world of Arcadia was was a casualty of the Age of War and recolonized during the Star League era.[32] During the final years of the Star League, Arcadia was the host of an Star League Defense Force garrison. Unfortunately, it also was the site of an incident where a Major of the 236th Mechanized Infantry Division went on a killing spree after not receiving a toy in a meal he ordered. The horrendous act was made worse by several members of the Major's battalion assisting in the horrendous incident. This caused serious political repercussions between the SLDF and the Lyran Commonwealth.[33]

Civil War Era[edit]

Arcadia was the site of a 3063 ambush set for Kristen's Krushers as they attempted to flee Alliance space. The unit was nearly destroyed but an unauthorized Free Worlds League rescue force not only preserved the unit, but maintained control of the world as a "protectorate" for the duration of the FedCom Civil War. On 11 April 3067, the League ceded the world back to the Alliance.[34][22]


Following the invasion of the Free Worlds League by the Skye and Bolan Provinces of the Lyran Alliance in what was termed Operation ÜBERSCHATTEN, Marshall Jeremy Brett took command of the local Free Worlds League Military and launched a counteroffensive under the name Operation BROKEN FIST.[25]

During the Free Worlds League's attack on Arcadia in September 3068, a lance from the mercenary unit Donovan's Dark Devils engaged a lance of 'Mechs from the planetary militia near Summerville.[35]

Meanwhile the rest of the mercenary attacked the maglev train carrying the militia's dependents to the safety of Summerville's shelters and destroyed the train during the fighting. Most observers believe this was done intentionally.[35]

The final assault against the Militia was a disaster for the mercenaries. They found unbridled fury and the Militia tore through them. Only the unit's DropShip was able to retreat, with Captain Donovan killed during the battle.[36]

But as Kirkpatrick's Invaders withdrew, they were left in an untenable position and they were unable to stand against the remaining regular Marik forces and thus surrendered.[36]

BROKEN FIST went beyond simply attempting to recapture worlds that the Lyrans had seized, striking into Lyran space at numerous worlds. Arcadia was one of the worlds hit and was overrun by the League forces on 10 September 3068.[25]

Dark Age[edit]

In December 3140, a portion of Clan Wolf's Gamma Galaxy attacked Arcadia. Attempting to take DeSota City, they faced an auxiliary mercenary force headed by Annie's Avengers. Gamma Galaxy could not break the defenses before First Steiner Strikers backup arrived—the auxiliary was reduced to a third of its size, but it held. Avengers CO Ann-Marie Dalmas's performance in battle, including her seventeen 'Mech and vehicle kills, earned her celebrity status across the Lyran Commonwealth.[31]

Military Deployment[edit]





Apocryphal Content Starts

The information after this notice comes from apocryphal sources; the canonicity of such information is uncertain.
Please view the reference page for information regarding their canonicity.

The database of the (apocryphal) 1989 video game MechWarrior, set around the year 3025, gives a population of 1.323 billion for Arcadia and describes the environment as "tropical" (out of only three impressions of planetary environments given in the game, these being "desert," "ice," and "tropical"). The description one-liner reads "Strong in agriculture and manufacturing."

Apocryphal Content Ends

Planetary Locations[edit]

  • Summerville: a city[38]
  • The Straits: a coastal area with beaches[38]
  • DeSota City[31]

Map Gallery[edit]

Nearby Systems[edit]

Closest 36 systems (33 within 60 light-years)
Distance in light years, closest systems first:
Gienah 5.9 Launam 19.6 Ford 22.0 Dar-es-Salaam 23.1
Nestor 23.8 Hyde 26.2 Senftenberg 27.6 Giausar 28.3
Pressby 29.7 Mariefred 34.2 Pardeau 36.8 McAffe 37.6
Megrez 42.0 Togwotee 42.1 Eilenburg 43.6 Bondurant 44.0
Concord 44.5 Hollabrunn 46.8 Uhuru 47.5 Rahne 47.7
Sheridan 49.4 Aigle 49.7 Danais 50.1 Zwenkau 50.6
Fianna 53.3 Loric 53.7 Cascade 54.0 Arganda 54.3
Soilihull 54.3 Sarpsborg 54.5 Gannett 56.5 Thermopolis 58.0
Pingree 58.9 Gniezno 60.4 Amity 61.7 Colfax 62.1


  1. 1.0 1.1 Era Report: 3145, p. 38: "Inner Sphere - 3145"
  2. 2.0 2.1 Field Manual: 3145, p. VI: "Inner Sphere - 3145"
  3. 3.0 3.1 Handbook: Major Periphery States, p. 25
  4. 4.0 4.1 Handbook: House Marik, p. 16
  5. 5.0 5.1 Handbook: House Steiner, p. 13
  6. 6.0 6.1 Handbook: House Steiner, p. 25
  7. 7.0 7.1 Historical: Reunification War, p. 159
  8. Era Report: 2750, p. 36
  9. Historical: Liberation of Terra Volume 1, p. 10
  10. Handbook: House Steiner, p. 36
  11. Handbook: House Steiner, p. 40
  12. Handbook: House Steiner, p. 47
  13. Handbook: House Steiner, p. 56
  14. Handbook: House Steiner, p. 59
  15. Historical: War of 3039, p. 132
  16. Era Report: 3052, p. 11
  17. Handbook: House Steiner, p. 61
  18. Era Report: 3052, p. 23
  19. Era Report: 3062, p. 11
  20. Era Report: 3062, p. 29
  21. Field Manual: Updates, pp. 10-11: "3063"
  22. 22.0 22.1 Field Manual: Updates, pp. 13-14: "3067"
  23. Handbook: House Steiner, p. 70
  24. Jihad: Final Reckoning, p. 41
  25. 25.0 25.1 25.2 Jihad: Final Reckoning, p. 46: "The Jihad In Review"
  26. Jihad Secrets: The Blake Documents, p. 64
  27. Field Report: LAAF, p. 21
  28. Jihad: Final Reckoning, p. 63
  29. Field Manual: 3085, p. vii: "Inner Sphere Map - [October 3085]"
  30. Era Report: 3145, p. 9
  31. 31.0 31.1 31.2 31.3 31.4 Shrapnel Issue 3 - Thunder Stallion 4
  32. Ask The Writer: Øystein's Response: "Lost during the Age of War, and resettled during the Star League era"
  33. Field Manual: SLDF, p. 143: "236th Mechanized Infantry Division"
  34. FedCom Civil War, pp. 38-40: "The Eagle's Flight"
  35. 35.0 35.1 35.2 Arcadia: Daybreak Fandango, p. 2
  36. 36.0 36.1 36.2 Scenario: Arcadia: Evening Tango, pp. 2–3: "Situation" and "Aftermath"
  37. Field Manual: SLDF, p. 255: "SLDF - Lyran Commonwealth Military Command Map"
  38. 38.0 38.1 Arcadia: Morningstar