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Watch trailer on Steam ↗Imperium of the Stars
Hyrcronix · Published by Hyrcronix · Official site ↗
Last updated 28 Sept 2026
A real-time 4X where each faction plays like a different game. Rule a Gothic empire that runs on faith, unmake the galaxy world by world, or forge a warhost from salvage. Up to 10,000 procedurally generated star systems. No diplomacy. Only war.
Strategy · 2027 · More free games
About this game
Imperium of the Stars is a real-time 4X grand strategy where each faction is a different game. Not different bonuses. Different economies, different research, different reasons to exist.
Rule a Gothic empire of cathedral worlds where faith runs like infrastructure. Unmake the galaxy world by world and call it healing. Or forge a warhost from salvage and prove your Pack-Lord in blood.
Then there is the Lattice. Crystalline, with no history here before the Long Silence.
Three hundred years after the warp went quiet, the galaxy is still deciding what it becomes. Up to 10,000 procedurally generated star systems. No diplomacy. Only war.
1,000 to 10,000 star systems, with configurable shape and compaction
Four asymmetric factions, Separate mechanics, separate tech trees, different power structure and different abilities and actions you can do, every faction almost plays like a different game
No diplomacy between the great powers. The war is permanent, and everyone plays by their own rules
Faith and loyalty are resources. Loyalty is kept by faith, and loyalty improves what worlds bring in
Orders go out empire-wide, Macro management is the core of the game, not an afterthought
A Game Director you can retune mid-campaign, from Balanced to Grimdark. Dynamic difficulty an answer to snowballing, so winning early does not turn the rest into a formality
The Factions
The Imperium seeks to reunite a shattered galaxy and calls it salvation. The Void Eternal seeks to return creation to the silence that came before it, and calls that peace. The Grokhar take what they can hold.
They are permanently at war, and what changes hands are the remnant systems. You steer where your faction goes, so no two runs go the same way.
Each has its own mechanics and its own tech tree, asymmetric enough that playing another feels close to playing another game.
Events that arrive without asking
A Cardinal petitions for a world you had other plans for. A Void whisper takes hold on a frontier system. A Pack-Lord has gone too long without blood. Some resolve in a single decision, others escalate for months.
Fought in real time
Fleet actions across dozens of ship classes. Ground sieges fought by regiments, where terrain and morale decide as much as numbers.
An empire that runs without you
Declare a sector as an operation, called a Grand Campaign. You set the commitment, the risk and the conditions that end it, and it musters its own task forces (groups of fleets) and runs them. When it cannot advance it says why: no route, outmatched, out of money. A sector governor does the same for building, working from that sector's own resources, and never overrides an order you gave by hand.
None of it is compulsory. You can always drop down and run a single world or a single fleet by hand.
A galaxy that never stands still
The Ordinator is your Game Director. It sets how hard the galaxy pushes back, on presets from Balanced to Grimdark, and you can change it mid-campaign.
Ten thousand worlds. One throne. The void is patient.
System Requirements
Will my PC run this? →Minimum
- OS: Windows 10 (64-bit)
- Processor: Quad-core, 2.5 GHz (e.g. Intel Core i5-7400 / AMD Ryzen 3 1200)
- Memory: 8 GB RAM
- Graphics: DirectX 11 (Intel HD 620, AMD Vega 8) 1 GB VRAM
- DirectX: Version 11
- Storage: 2 GB available space
- Additional Notes: Small–medium galaxies. Reduce galaxy size on 8 GB systems.
Supported Languages
*languages with full audio support
Latest news
AnnouncementsOfficial
Dev Diary #2 — Imperium Court
The Imperium is the main faction in Imperium of the Stars. It will be most likely the one you will be playing first, and this the one other factions will be compared to. It also has the most politics in the game. It is basically a feudal empire, with the Throne at the centre. The CourtThe court has twelve seats: four Great Officers and eight Officers of the Realm. Every courtier has two stats, loyalty and acumen. Acumen is how good they are at their job. Loyalty is their loyalty to the throne. A brilliant courtier who doesn't trust you is barely better than an empty seat, and a loyal-but-average one is worth keeping since you know what you are getting. Each seat's bonus is tied to its role and provides a bonus to different parts of the empire. The court also feeds directly into Stability, this will make it easier for you to reclaim the galaxy.Courtiers can go disloyal, which triggers its own events: embezzlement, sabotage, defection, the occasional coup attempt. The court is something you should keep a good eye on.DecreesDecrees are the Imperium's standing policy system, Decrees cover six categories and each have three options.The middle option is always the Measured course, with no bonus and no penalty. That's on purpose. I didn't want balanced to just mean worse than picking a side. The payoff for staying measured comes from the ideology system instead.The two side options carry a small, symmetric tradeoff, a bit of one thing for a bit of another. But the modifier pair isn't really the point. Every side option also nudges one of the four Conviction axes, and that's the real decision: is not about which bonus I want, but in what direction I want to steer my Imperium. The HousesThe Imperium has two layers of politics. The Court is the inner ring, appointed officers close to the Throne. The Houses are the outer layer, the feudal system.Independent minor nations that broke off during the Long Silence can be absorbed through diplomacy or conquest, and either way they b...Read full article on Community Announcements (MadJames)AnnouncementsOfficial
Dev Diary #1 — The Pillars of Imperium of the Stars
This is the first dev diary. Posting one every two weeks from now on.Imperium of the Stars is a 4X grand strategy game that I've been building solo. This dev diary is about the foundations: what the game is, what I'm trying to build, and why.What kind of game is this?The game takes place in a Gothic Space Opera galaxy, the year is 30,000. 300 years after a catastrophic isolation event called the Long Silence, the galaxy is fractured and slowly rebuilding. You pick a faction, expand across stars, manage planets and fleets, and fight your way to dominance.Closest comparison is Stellaris. Galaxy-scale empire management, AI empires doing their own thing. But most important, I want the faction choice to actually matter. Not just different aesthetics, but different mini-games.Pick the Imperium and you're navigating a court. Competing interests, ancient authority, an emperor who speaks rarely and finally. Pick the Void and you're managing four gods and the oblivion they feed on. Every world you touch is a resource. Pick the Grokhar and you're building up a Pack-Lord. Win battles, grow his power, hold the pack together long enough to call the Muster. 1. Asymmetrical factionsThe thing I care most about: every faction should feel like a different game.Not just different stats. Different economies, different win conditions, different ways of thinking about the galaxy.The asymmetry goes into the UI, the resource systems, the strategic options. But the most interesting example is tech. There's no shared tech tree. Each faction has a completely different research mechanic.Imperium has two parallel tracks. Standard research branches split into four year-gated Eras, so the tree reveals itself over 400 years instead of all at once. And a lost-tech recovery layer on top: explore relic systems, invest in a heritage building, earn Archive Fragments that unlock powerful hidden techs the empire tries to "remember."For the Void, Favor is research. The four tech paths are the four gods, an...Read full article on Community Announcements (MadJames)
