Mobidyc is a Generic Multi-Agents Simulator for Modeling Populations Dynamics. Mobidyc aims to promote Individual-Based Modelling in the field of ecology, biology and environment. It is the acronym for MOdelling Based on Individuals for the DYnamics of Communities. Users included Biologists or researchers with no computer skill who wish to quickly build and run simple IBMs or cellular automata; Modelers who want to take advantage of the Mobidyc framework to write complex models or dedicated simulators.