breve is a 3D simulation environment designed for the simulation of decentralized systems and artificial life. While the concept is similar to existing packages such as Swarm and StarLogo, the implementation, which simulates both continuous time and continuous 3D space, is quite different. It also includes an experimental physics engine, allowing the user to implement real-time physical simulations. Simulations are written in a simple object-oriented language called "steve". Users define an agent's behavior by specifying how the agent interacts with the world at each timestep and how the agent interacts when it collides with other agents. The ultimate goal of the system is to allow decentralized simulations to be implemented quickly and easily while providing a sophisticated set of object classes and libraries to facilitate the construction of advanced artificial life simulations.
