The Repast Suite

The Repast Suite is a family of advanced, free, and open source agent-based modeling and simulation platforms that have been under continuous development for over 15 years:
Repast Simphony 2.6, released on 20 November 2018, is a richly interactive and easy to learn Java-based modeling system that is designed for use on workstations and small computing clusters.
Repast for High Performance Computing 2.3.0, released on 26 November 2018, is a lean and expert-focused C++-based modeling system that is designed for use on large computing clusters and supercomputers.
Learn Repast using the Repast Tutorials.

Watch the Repast team discuss the present and future of ABM as part of the CoMSES 2018 Virtual Conference: