Empire Building

Planet Colonization

Unclaimed planets scatter the galaxy. Claim them, build colonies, and create a passive resource empire that generates income while you sleep. Territory is power — and the best empires are built one planet at a time.

Start Your Empire — Play Free How Trading Funds Colonization

How Colonization Works

Finding Uninhabited Planets

As you navigate sectors, you'll encounter uninhabited planets scattered throughout the galaxy. These are opportunities. Any player can claim an unclaimed planet by landing on it — but only if you have colonists aboard and can defend your claim.

Building Colonies

Once you've claimed a planet, you build colonist populations. Colonies need Organics to grow. As your population increases, the planet generates more resources — Ore, Organics, or Equipment depending on the planet type. A mature colony is a significant passive income source.

Defending Your Territory

Planets can be attacked. Rival players can assault your colonies and seize them. Planetary defenses — fighters, shields, and defensive structures — require investment to maintain. Leaving a planet undefended is an invitation your enemies will accept.

Strategic Territory Control

It's not just about the individual planet — it's about the sector it's in. Controlling multiple planets in the same region creates a defensible cluster that's much harder to dislodge than scattered individual holdings. The best empires are built to be defended, not just built to produce.

Why Colonization Matters

Passive Income

Mature colonies generate resources continuously. Build enough of them and your income dwarfs what you can earn from trading alone.

Territorial Control

Claiming and holding sectors shapes the political landscape of the galaxy. Your corporation's footprint determines your strategic reach.

Military Staging

Planets in key sectors serve as launching points for offensive operations and defensive chokepoints against invasion.

Corporate Power

The richest corporations control the most planets. Colonization is the long game — and the players who commit to it early hold a durable advantage.

The Galaxy Has Unclaimed Worlds Waiting.

Build your empire, planet by planet. Free browser space game — no download, no pay-to-win.

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