Cosmic Fleets is a multi-player game of interstellar exploration, colonization and conquest. Scout the stars, settle new worlds, make treaties and break them, and send your fleets where they will hurt the most.
You play in CFViewer, a Windows program that shows your corner of the galaxy in 3D. Work on your orders whenever you like; each turn is run on a schedule, usually once a day.
Enter your name and e-mail address below. We e-mail you a 6-digit code; type it in and you have an account.
Download it, open its Online window and sign in with the same e-mail address. No password to remember.
The game moderator seats new players when a game starts. Your games then show up in CFViewer and on this page.
Download each new turn, plan your moves, and send your orders before the turn is due. Change them as often as you like until then.
orders sent still waiting
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New players: fill in your name and e-mail address. Already playing? Your e-mail address is enough.
We use your address only to send sign-in codes and game news. Other players see your name, never your address.
Unzip it anywhere and run CFViewer.exe. Nothing to install.
CFViewer isn't code-signed yet, so Windows may say it "protected your PC". Click More info, then Run anyway. Some antivirus programs flag unsigned games too; you can allow it.
Download CFViewer
The full rules: ships, leaders, production, combat and diplomacy, plus a guide to the viewer and your first turn.
Read the rules (PDF)