Season 1 · Live now
Every two weeks, a new race
Hold planets, take systems, haul minerals and find relics for season points. The top commanders win up to 2,000 IO and 800 Star Shards — then everyone starts again at zero.
Lead your fleet to victory!
Take command of your own flagship and build an armada at your shipyards. Fly across an endless universe, conquer planets one by one, mine their minerals and defend your home world — with your allies, against everyone else. The universe never stops: you can be raided, but you're never out. Rebuild, strike back and climb the season.
Star I/O News
New · I/O Gas fields
Relics of massive power
The four corners of the universe are flooded with toxic I/O Gas. Bring repair tenders, dive into a gas well and claim a relic: Void Engine, Nova Heart, Aegis Core, Titan Forge or Omen Eye.
Game modes
Conquest
An endless online universe of 16 commanders. Conquer planets and systems, mine, terraform and survive — it runs around the clock.
Fleet battles
Real-time 1v1 and 2v2 battles. Build at your shipyard, pick formations, fire the ion cannon and break the enemy line.
Arena
Pick your fleet each round, best of three. Pure skill — every commander starts equal.
Join the private beta
Every commander gets a personal access code from the Star I/O team.
- Get your codeEach code works once.
- Create your accountCommander name and password.
- Play anywhereBrowser, Android or the iPhone / iPad app — one account.