Vostroya is a bleak industrial world in Segmentum Obscurus, famous for its Vostroyan Firstborn regiments. It’s often called a forge world, but that’s not quite right, and the difference matters.
What Vostroya actually is
Vostroya sits in Segmentum Obscurus, beyond the Eye of Terror. It’s classed as an Industrial World, not a forge world and not a hive world. It falls somewhere in between.
Its tithe grade is Exactis Extremis, the highest tier, and around 9.3 billion people live there. Birth and death rates are both very high, which keeps the population roughly stable despite huge numbers leaving for war.
The world runs on manufactoria that churn out arms and ammunition for the Imperium. It’s been doing that since the Great Crusade, ten thousand years of production lines and quotas.
Why it matters: the Firstborn debt
During the Horus Heresy, Vostroya refused to send regiments to the Emperor. Instead, it kept its people on the factory floor. After the Heresy ended, the world agreed to a penance: every first-born son would serve in the Imperial Guard. That’s where the Vostroyan Firstborn come from.
The tradition still holds. First-born sons from every family, noble or common, are pledged to the Astra Militarum. Their equipment is ornate and often passed down to new recruits, so the regiments carry a visible legacy of fine weapons and wargear.
The Vostroyan Firstborn first appeared as a regiment in 2006, tied to the Fall of Medusa V campaign. Their classic miniatures have since returned as a Made to Order release, and they can stand in for Cadian Shock Troops or Heavy Weapons Squads in games.
Government and culture
Vostroya is ruled by the Techtriarchs, a council mixing Adeptus Mechanicus members with more traditional planetary representatives. That hybrid setup fits a world that’s industrial but not a formal forge world.
Vostroyan males generally sport moustaches, and the culture is proud and fierce. Life is harsh: the landscape is polluted, plant and animal life is almost gone, and most food is imported. Rebreathers and masks are common against the cold winds and tainted air.
There are seven administrative zones around the temperate equatorial belt, including The Magdan, Sohlsvod and Muskha. The far north and south are uninhabitable. Vostroya has one moon, Turtolsky.
The world has seen at least eighteen ‘Great Wars’. In the ruins left behind, a substantial mutant population lurks, hunted by bounty hunters or killed in PDF operations.
Notable locations and wildlife
Key hives include Hive Ahropol, Hive Decius, and Hive Tzurka. Outside the managed zones, almost nothing lives. Birds are a rare sight.
Chemdogs, descended from canids brought by early settlers, are one of the few animals you’ll find. Hive vermin like lungspiders and rats are more common.
- Hive Ahropol, Hive Decius, Hive Tzurka: major hive cities.
- Turtolsky: Vostroya’s single moon.
- Chemdog: canid descendant of settler dogs.
- Lungspider and rat: hive vermin.
Key facts
- Vostroya is an Industrial World in Segmentum Obscurus, not a true forge world.
- Population is around 9.3 billion, with a tithe grade of Exactis Extremis.
- It’s ruled by the Techtriarchs, a mix of Adeptus Mechanicus and planetary representatives.
- The Vostroyan Firstborn are first-born sons pledged as penance for the Horus Heresy.
- The world has one moon, Turtolsky, and seven main administrative zones.
- At least eighteen ‘Great Wars’ have left ruins infested with mutants.
FAQ
Is Vostroya a forge world?
No. It’s officially an Industrial World, sitting between a hive world and a forge world. It supplies weapons and ammunition, but it isn’t run by the Adeptus Mechanicus in the same way a forge world is.
Why do the Vostroyans send their first-born sons to war?
As penance for refusing to send regiments to the Emperor during the Horus Heresy. Every first-born son serves in the Imperial Guard, a tradition that created the Vostroyan Firstborn.
What is Vostroya’s tithe grade?
Exactis Extremis, the highest grade. It reflects the world’s massive industrial output and its huge contribution of soldiers.