MATSim is described as 'Activity-based, extendable, multi-agent simulation framework implemented in Java . It is open-source and can be downloaded from the Internet ( MATSim , 2016 ; GitHub , 2015 ). The frame- work is designed for large-scale scenarios, meaning that all models’ features' and is an app. There are more than 10 alternatives to MATSim for Windows, Linux, Mac, Raspberry Pi and Docker. The best MATSim alternative is Anylogic. It's not free, so if you're looking for a free alternative, you could try Simulation of Urban MObility (SUMO) or TRANSIMS. Other great apps like MATSim are Simile, HCS, Quadstone Paramics and The Repast Suite.