Repast

Repast (Recursive Porous Agent Simulation Toolkit) is an open-source software framework used to create and run simulations involving many interacting entities, called agents. It helps researchers model complex systems—from ecosystems to social behaviors—by allowing them to define rules for agents' actions and interactions. Repast provides tools and interfaces to visualize these simulations and analyze results, making it easier to study how individual behaviors influence larger patterns over time. It is widely used in fields like ecology, economics, and social sciences to gain insights into dynamic, adaptive systems.