Single-player 4X Space Strategy

Imperium

Imperium

Forge an interstellar empire across a living galaxy. Explore, terraform worlds, design your fleet ship by ship, and outmaneuver twenty-one rival species through diplomacy, espionage, and war.

Windows & macOS · Single-player · Coming 2026

A 4X strategy game built for depth

Imperium begins with a single homeworld and ends with an empire spanning the stars. Every system you chart, every world you terraform, every ship you design, and every treaty you sign — or break — shapes a galaxy that keeps evolving whether you are watching or not.

It pairs the classic 4X loop with grounded sci-fi technology, cinematic art, and an atmospheric soundtrack — all wrapped in a polished interface designed to get out of your way.

Fleets gather above a terraformed world in Imperium

What you'll command

Five interlocking systems — exploration, economy, research, warfare, and diplomacy — and the AI to test them.

Explore a living galaxy

Every game generates a fresh galaxy of stars and starlanes shrouded in fog of war. Survey systems, uncover what waits in ancient ruins, and race rivals to the worlds worth having.

Build & terraform worlds

Grow colonies tile by tile on the planet grid, terraform hostile worlds into productive ones, and raise megastructures like the Dyson Sphere and Starlane Gate.

Design your fleet

Four hull sizes per species and 70+ components to fit them with. Two commanders flying the same hulls can wage completely different wars.

Research a deep tech web

A sprawling web of interconnected technologies — gravity manipulation, frequency weaponry, spacetime engineering — that reshapes how your empire grows and fights.

Diplomacy with consequences

Earn Imperium Points, plant embassies, broker treaties, run covert operations, and turn rivals against one another. Relationships shift, sour, and recover on their own.

AI worth outsmarting

Every rival is driven by purpose-built algorithmic AI — strategy, economy, fleet, and diplomacy working together with a distinct personality. No two galaxies play out the same.

Screenshots

From the galaxy map down to a single colony. Click any shot to enlarge.

Twenty-one species

Each species brings its own homeworld biology, fleet aesthetic, signature ability, and AI personality. The empire you run is yours to master — who you share the galaxy with is what makes every game different.

Veylilith

Veylilith

Tessara

Signature ability

Crystalline Seal

Aethilin

Aethilin

Luminos

Signature ability

Galactic Ceasefire

Throk

Throk

Bastion

Signature ability

Fortress Protocol

Qheneth Qho

Qheneth Qho

Cognita

Signature ability

Eureka Moment

Dsin

Dsin

Ephemera

Signature ability

Phase Drift

Cathacra

Cathacra

Shroud

Signature ability

Intelligence Coup

Zyyth Azr

Zyyth Azr

Thalassyn

Signature ability

Regeneration Pulse

Kxk

Kxk

Rifthome

Signature ability

Spatial Purge

Phasaryn

Phasaryn

Shiftworld

Signature ability

Starlane Disruption

Isyl Vynn

Isyl Vynn

Verdance

Signature ability

Worldbloom

NXari

NXari

Nomadic fleets

Signature ability

Universal Contact

Stellari

Stellari

Astrum

Signature ability

Star Cartography

Solarin

Solarin

Helionis

Signature ability

Power Surge

Phteryth

Phteryth

Attira

Signature ability

Pheromonic Influence

Keth

Keth

Chittara

Signature ability

Swarm Growth

Zhah

Zhah

Ironfall

Signature ability

Shock Invasion

Vorchott

Vorchott

Anvarra

Signature ability

Expert Builders

Oculari

Oculari

Panoptica

Signature ability

Starlane Sight

Litharrak

Litharrak

Crucible

Signature ability

Extremophile Construction

Phantoms

Phantoms

Nighthollow

Signature ability

Energy Siphon

AgraVor

AgraVor

Massivus

Signature ability

Dense Hulls

At a glance

Platforms

Windows · macOS

Players

Single-player

Pace

Real-time with pause

Interface

English

Controls

Mouse & keyboard

Release

Coming 2026

Imperium's artwork, music, and sound effects were created with AI tools and hand-finished by Petroff Ltd.

Wishlist Imperium

Add Imperium to your wishlist on Steam to be notified the moment it launches — and join the Discord to follow development.

A game by Petroff Ltd. Questions? games@petroffltd.com