Ion Space

Colonies, logistics, and research at scale in one persistent multiplayer galaxy

Free browser game with colonies, research, and a shared persistent galaxy. Open alpha - create an account to play.

Huge persistent galaxy

Grow from one foothold across many systems: scout, settle, and keep production and logistics running.

Vast universe

10,000 solar systems

Zoom from galaxy scale into a solar system on the Ion Space multiplayer map

Shared galaxy

One persistent map

Colonies, fleets, diplomacy, and combat all run on the same live world.

  • World events reflect colonization, builds, and finished research
  • Treaties and offers define alliances, neutral space, and sector access
Ion Space galaxy map showing shared multiplayer space

Progression

From surface to galaxy scale

Milestones unlock science, ships, orbital layers, and map scope. Each stage adds tools on the same shared map.

  1. Surface colony Balance energy, workers, and production on the ground.
  2. Science & compute Labs produce compute for empire-wide research unlocks.
  3. Ships & operations Build ships, queue flights, colonize worlds, move cargo.
  4. Orbital access Low orbit through full orbital operations.
  5. Universe view Systems and regions at galaxy scale.
  6. Intel & markers Fog of war plus markers for scouting and objectives.

Worlds

Every planet type changes how you build

Rock, ice, ocean, desert, and volcanic worlds each have different terrain and tile rules, so the same buildings land differently depending on the ground beneath them.

  • Earth-like planet type

    Earth-like

  • Water planet type

    Water

  • Rock planet type

    Rock

  • Ice planet type

    Ice

  • Volcanic planet type

    Volcanic

  • Desert planet type

    Desert

Science

Empire-wide research

Compute from labs funds research. Unlocks apply to every colony.

  • Labs add capacity and generate compute over time
  • One active core research at a time
  • Offline labs slow generation
Ion Space research tree showing science progression

Multiplayer

Treaties, wars, and fleet combat

Fleet movements, diplomacy, and automatic combat when hostile fleets share a sector, with the same rules for every player in the shared galaxy.

  • Players are attackable by default in neutral relation, war starts immediately when declared
  • NAP, defense, and trade treaties require offers and acceptance

Play anywhere

Manage your empire on the go

No install needed. Keep production, fleets, and diplomacy moving from desktop or mobile browsers. Your empire stays in sync in the same shared galaxy wherever you check in.

Ion Space in mobile browser format for managing on the go

Join the mission

Free multiplayer browser game: help shape a persistent shared galaxy. Sign up to play, Discord for the community.

Community

Talk strategy, report bugs, and meet other commanders in the Discord.

Join Discord