Evolutionary game theory on scale free networks This is an implementation (in the Chapel programming language) of the prisoner's dilemma on scale free networks, based on [1]. Note: this also serves as a first introduction to Chapel for me. Author: Roald Frederickx <roald.frederickx@gmail.com> References: [1] Santos, F. C., Pacheco, J. M., 2005. Scale-free networks provide a unifying framework for the emergence of cooperation. Phys. Rev. Lett. 95, 098104.