COLDSTAR is a free 2D space combat MMO you play right in your browser.
Unlock and upgrade ships, modules and drones
Fight live PvP against players from across the galaxy
Conquer 7 wormhole arenas
Complete over 180 quests
A scheduled event every day of the week
Proximity voice chat with your allies
Ride solo as a raider, or join a clan and wage clan wars
Team up in squads
Climb the leaderboard across rotating seasons
Explore over 20 maps and more than 40 enemy types
In active development, with more content always on the way.
Why your PC may block the install
This is normal — and safe
When you download the Windows client, Windows SmartScreen or your browser may show a warning such as “Windows protected your PC” or “unknown publisher”. This happens with almost every new indie game.
It does not mean the file is dangerous. It only means we haven’t bought a code-signing certificate yet — those cost several hundred euros every year, and as a small early-access studio we’ll add it as Coldstar grows.
To install anyway: click “More info” → “Run anyway”.
Rather not take our word for it? Two safe options:
