The G System, often simply called "G", is an effort to create exactly this: simulation of evolution. This is both, a scientific exercise and a virtual reality where many "users" can participate in an ever changing, realistic and ... evolving universe.

G is basically a framework for virtual world simulations. And not only a framework (the "G System") but a virtual reality itself, which will become the application created with the G System.

• Multi-User 3D virtual world experience.
  The G System provides a 3D virtual reality that can be experienced by many users at the same time. The Users are part of the evolving universe.

• Simulation
  The goal of G is to simulate a realistic, dynamic and evolving universe.
  To allow great flexibility a well designed core system provides the infrastructure for the world. The whole world is made up with elements.
  Elements allow for creation of rule systems (like realistic physics, impact of feelings,...) to be applied to elements as well as integration of artificial intelligence (and anything else that is needed) to create evolutionary abilities.
  Rule systems are created with "agents". These agents can reach arbitrary complexity and are executed as a thread, thus allowing maximum freedom to the agent design. Users can enter the world and interact with their environment, which ultimately has an impact on the evolution of the virtual universe. Thus, users make up a part of the overall simulation.