NetLogo
NetLogo is a programmable modelling environment for simulating natural and social phenomena. It was authored by Uri Wilensky in 1999 and has been in continuous development ever since at the Center for Connected Learning and Computer-Based Modeling.
NetLogo is particularly well suited for modelling complex systems developing over time. Modellers can give instructions to hundreds or thousands of "agents" all operating independently. This makes it possible to explore the connection between the micro-level behavior of individuals and the macro-level patterns that emerge from their interaction.
NetLogo has extensive documentation and tutorials. It also comes with the Models Library, a large collection of pre-written simulations that can be used and modified. These simulations address content areas in the natural and social sciences including biology and medicine, physics and chemistry, mathematics and computer science, and economics and social psychology. Several model-based inquiry curricula using NetLogo are available and more are under development.
NetLogo is the next generation of the series of multi-agent modelling languages including StarLogo and StarLogoT. NetLogo runs on the Java virtual machine, so it works on all major platforms (Mac, Windows, Linux, et al). It is run as a standalone application. Models and HubNet activities can be run as Java applets in a web browser. Command line operation is also supported.
(Source: http://ccl.northwestern.edu/netlogo/5.0/docs/whatis.html)
This work was funded by a NERC Postgraduate and Professional Skills Development Award.