A free multiplayer space game that runs 24/7 right in your browser. Pick a faction, mine drifting asteroids, build a base, and fight for the top of the galaxy. No download, no lobbies, and
your progress never resets.
Asteroid Dominion is a browser-based multiplayer space game with no download and no install — just sign in and fly into a galaxy that runs around the clock. There are no matches and no lobbies. When you arrive, hundreds of asteroids are drifting under gravity, AI ships are patrolling faction territory, and other players are mining, fighting, and building all at once.
Everything you earn sticks. Your ship level, your claimed asteroids, your turrets, and your standing on the leaderboard all carry between sessions, because this world is never wiped or season-reset. Choose a faction, upgrade your ship across eight stat categories, and decide whether you want to trade, fight, build an empire, or go rogue and answer to no one.
It is built by Sandbox Studios LLC, an independent studio shipping near-daily updates — "Where your game is never over."
One galaxy, endless ways to play it
Log off and your ship and base are still ONLINE! Still flying, still firing — and still able to be destroyed. Log back in to see how they held the line without you. That's the real test of your defenses.
Side with the law or the traders — or go solo as an Outlaw. Each faction's signature harpoon ability rewrites how you fight, and the Bone Collector swarm hunts all three.
Strip asteroids for materials and fuel in the same beam. Mining isn't downtime — it's how you keep your shields up and your hold full.
Claim asteroids and mount turrets that defend your space around the clock — they keep firing even while you're logged off.
Dogfight players and AI with bullets, harpoons, and physics-driven ramming. Hunt the rotating bounty target for a huge XP payout.
Set your ship to mine, patrol, defend, or build itself while you plan your next move. Every enemy runs the same brain — learn it and outplay it.
From never-played to flying in about a minute
One click, no install. Your progress saves automatically to your account.
Concordium, Unbound, or Outlaw — each one plays differently.
Q E thrust forward, A D reverse; steer by thrusting one side harder. On touch, one thumb-stick flies and thrusts.
Switch to the mining laser with W, hold fire on a rock, and fill up on fuel and materials.
Keep fuel in the tank so your shields stay up, and back off when a big hit forces a shield reboot.
Claim a rock, mount a turret, and chase the daily leaderboards. Read the full first-session walkthrough.
Three factions, three ways to fight — pick fresh every time you spawn
Coordinated patrols who ARREST intruders — their harpoon locks an enemy's engine and weapons for two and a half seconds while the squad closes in.
The economic faction. Their LOOT harpoon siphons enemy cargo while they mine, claim, and fortify the richest asteroids in the galaxy.
Sheer numbers. Their AI swarm is the largest fleet in the galaxy and their EAT harpoon gnaws health straight through shields.
No teammates, no rules, the highest XP per kill in the galaxy — and everyone is a target, including you.
Deep-dive guides for every system in the game
Three weapons share one slot, so every fight is about committing to the right tool. Master the fuel-to-shield loop and the rotating gold-ring bounty and you'll win fights you used to lose.
Read the combat guideEverything you build starts with a rock. Eleven asteroid tiers pay out materials and fuel at once — bigger rocks are richer but far more dangerous to ram or shatter.
Read the mining guideTurn materials into something nobody can loot: claim an asteroid for your faction and mount turrets that hold the line while you're away. Cluster on chokepoints to fortify a sector.
Read the building guideThe galaxy never holds still. Gravity swings between calm and storm on a nine-minute cycle, the Bonefall sends the Bone Collector swarm hunting every quarter hour, and the bounty reshuffles constantly. Read the rhythm.
Read the events guideSpend level-ups across eight stats to build a tank, a glass cannon, a mining rig, or a turret architect. There's no single right loadout — and your progress survives death.
Read the leveling guidePick where to fly and what to do, and your ship handles the rest — mining, patrolling, defending, or hunting. Every enemy runs the same brain, so reading it is a real edge.
Read the autopilot guideA four-engine flight model means steering emerges from thrust, not a turn key — odd for a minute, instinctive after a session. Full keyboard, mouse, and touch, all competitive.
Read the controls guideThree daily contests reset at midnight UTC — most valuable kill, biggest single life, and longest survival — plus an all-time board that never resets. Champions are named each morning.
See the highscoresFree, instant, and waiting in your browser right now
Asteroid Dominion is made by Sandbox Studios LLC, an independent game studio in Oklahoma. For bug reports, feedback, partnerships, or press, email sandboxstudiosllc@gmail.com, or reach us on Discord or X / Twitter (@Sand_Box_Studio).