Stellar Universe is a free MMO strategy game with a persistent galaxy, real-time battles, and rich multiplayer diplomacy.
Facing a destructive invader, humanity had to evacuate Earth in a hurry. Hundreds of colonization ships, carrying millions of citizens, were scattered into space to flee. You are the commander of one of those ships, woken after years of cryogenic sleep on an unknown planet. It's time to rebuild a world.
Commanders of Stellar-Universe,
A new layer of conquest has arrived - it is no longer just about fleets.
Military Base: Recruit & Deploy
- Two new planet buildings: the Military Base (trains ground troops) and the Stargate, which dials procedurally-generated addresses to reach other planets across the galaxy.
- Train…
What's unfolding right now in the universe, written by the players.
Build your empire, explore galaxies, and play with a global community of commanders.
No one knew where the colonization ships would end up. Each one drifted for years, its citizens deep in cryogenic sleep, searching for a world still worth living on.
Yours eventually found a planet. You wake up first, the last commander still standing, with one order left by those who came before you: rebuild.
« Nothing awaits you except what you build. »
Every star system is generated inside a spiral galaxy, each with its own planets, asteroid fields, and habitability potential. On every colony, four resources drive your economy: mineral and crystal mined from the ground, biomass grown in your agricultural districts, and energy powering every building. A fifth resource, research points, isn't harvested — it's explored, planet by planet, with a ship carrying a science module.
There's no catalog of fixed hulls. Here, a fleet is a composite ship you assemble yourself on a modular grid — core, weapons, armor, shields, engines, troop bays, science modules. Over forty distinct modules to combine, each with its own cost and research prerequisites: no two fleets ever really look alike.
Every clash resolves turn by turn on a hexagonal grid. Shields absorb damage before it reaches the hull, and an active armor buff can cut losses in half. Status effects — ionization, jamming, overheating, gravity fields — shake up the tactics every round, depending on the modules each side carries.
The Stargate network lets you launch instant missions toward any planet whose address you've discovered: colonize, explore, attack, or pillage — each with its own duration, from fifteen minutes to twelve hours.
Create your species by choosing traits that influence your mines, your production, or your build times — then a government authority and up to two ethics that shape your domestic policy.
Your relations with other empires shift continuously, from hostile to cordial, based on your actions and the compatibility of your ethics. Helping in battle brings you closer, attacking pushes you apart: diplomacy is built over time, not through a single menu.
Real-time empire rankings, galaxy-wide news, chat between commanders: your empire keeps existing whether you're logged in or not.
It's a free web browser game. Click and play without downloading! You can also download our app, better suited for playing on PC or phone.
Explore and discover a persistent universe in this RTS MMO, interact with other players and travel among the stars. Forge a galactic empire by researching new technologies, shaping diplomatic relations, and declaring wars.