(References to Helm)
Helm neighbouring systems
|Recharge time||195 hours|
Note: X and Y are coordinates (light years on XY plane) relative to Terra at (0, 0)
| Jump point
|Atmospheric pressure||Standard (Breathable)|
|Equatorial temperature||30°C (Cold-Temperate)|
|Highest native life||Reptile|
|Ruler||Landholder Halina Elin|
 Owner History
- 2271 - Free Worlds League
- 2596 - Free Worlds League 
- 2750 - Free Worlds League 
- 2765 - Free Worlds League 
- 3025 - Free Worlds League
- 3030 - Free Worlds League
- 3040 - Free Worlds League
- 3052 - Free Worlds League
- 3057 - Free Worlds League
- 3062 - Free Worlds League
- 3081 - Stewart Commonality 
- 3130 - Marik-Stewart Commonwealth 
- 3132 - Marik-Stewart Commonwealth
 Planetary Info
The capital city of the planet is Helmsdown. Other notable locations include the ruins of the former capital city of Freeport, which was an SLDF logistical depot, and the SLDF weapons depot that it eventually became. This weapons depot was combined with a Castle Brian complex under Nagayan Mountain.
 Planetary History
At the dawn of the First Succession War, Minoru Kurita sent troops to raid Helm and commandeer the SLDF stockpile. Unable to find the materials left behind by the SLDF, Kurita flew into a rage and ordered his forces to punish the people of Helm. Nuclear weapons rained down on the world, killing over 80% of the population and leaving huge swathes of the planet radioactive deserts. A few AeroSpace Fighter bays located in some asteroids are the only remaining parts of the SLDF fleet base.
The planet was best known for being site of the discovery of the Helm Memory Core in 3028. Helm was granted to the Gray Death Legion as their landhold. Rogue elements from the League and ComStar attempted to manipulate the mercenaries into destroying the Memory Core, but were unsuccessful. The Helm Memory Core was taken to many universities across the Inner Sphere, triggering the technological renaissance of the mid-31st century.
Helm remains a largely agrarian world. Enough of the land has been decontaminated to grow food, and the events of 3028 returned the Yehudan Sea to its place on the surface. (The SLDF had locked the seawaters underground for some reason.)
 Manufacturing Center
 Nearby Planets
- ↑ 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 Handbook: House Marik, p. 68 "Helm"
- ↑ Handbook: House Marik, p. 16, "Free Worlds League at their founding Map in "
- ↑ Historical: Reunification War, p. 158, "Inner Sphere - 2596"
- ↑ Era Report: 2750, p. 37, "Inner Sphere - 2750"
- ↑ Historical: Liberation of Terra Volume 1, p. 11, "Inner Sphere - 2765"
- ↑ Jihad: Final Reckoning, p. 62, "Inner Sphere - March 3081"
- ↑ Map of the Inner Sphere 3130