Distributed Systems Simulator (VS-Sim) VS-Sim is an open source simulator programmed in Java for distributed systems. VS-Sim stands for "Verteilte Systeme Simulator" which is the german translation for "Distributed Sytstems Simulator". The VS-Sim project was my diploma thesis at the Aachen University of Applied Sciences and can simulate various scenarios of the distributed systems lecture at the university. At the moment the whole simulator and the written diploma thesis document is in german only. An english version of the program may follow if requested. Version 1.0 (Aug 18th 2008) Initial open source version of the VS-Simulator released. ATM in german language only. An english version will follow.