One self-replicating probe arrives in a star system. Every asteroid it mines becomes another probe, and every probe goes looking for another asteroid.

1. 01

   Choose a system

   Our own Solar System, the twin suns of Kepler-16, or any number of unique systems.

2. 02

   Set the rules

   Decide the parameters of the swarm. Mining speed, replication time, weapons capacity, even copying errors %.

3. 03

   Throw disasters at it

   A rival swarm, a stellar flare, upstart natives. See what survives.

4. 04

   Watch the numbers

   Probe count, generations, the mass eaten in real kilograms and more, live as it happens.