kolonie in one minute

kolonie is a free multiplayer game about gravity that runs in your browser. Each dish is a small star system shared by up to 20 colonies and simulated on the server 60 times a second. You grow by taking in whatever is lighter than you, and the round is yours once you hold 40 % of all the mass in the dish. Nothing to install, no account: type a name, or none, and press Play.

At a glance

• Start: every colony, player or bot, enters a round with 6,000 units of mass.
• Controls: press and hold with the mouse or a finger to throw mass away and drift the other way. A push costs 0.7 % of your mass around cores, about 0.3 % around a sun or black hole.
• Colors: blue is lighter than you, red is heavier, grey is within 2 %.
• Arenas: Core, Binary, Belt, Drift, Sun and Black hole, 3,700 to 6,600 units in radius, freshly generated for every round.
• Hall of Fame: the day's ten biggest colonies of 18,000 units or more, cleared at midnight Berlin time.

Skins only change how a colony looks, so nothing you can buy wins a round. The guide has every rule with its numbers, the FAQ covers skins, BTCX rewards and privacy, and the changelog shows what changed when.