Organic Builder descriptionThis program demonstrates artificial chemistry in which each circle is an atom, that spins around and can be bonded to othersOrganic Builder demonstrates an artificial chemistry. Each circle is an atom, that floats around and can become bonded to others to form a molecule.

The reason for using a strange abstraction of chemistry like this is that you can do some really cool things in a simple system. This freeware takes you through some of the possibilities.

Perhaps the coolest thing you can do is template replication - the process DNA uses to make copies of itself. If you choose the right rules you can actually get this working - follow through the challenges to find out how.

The reason for using a spatial system, with atoms bouncing off each other, is that you can then do things like make a membrane out of atoms, and use it to make compartments in the space. Again, some of the challenges explore this idea.

Organic Builder's interface is intuitive and is composed of two distinct parts: the collision arena on the right, full of