Most discrete event simulation environments are based on a process-oriented, and therefore multi-threaded paradigm. This results in simulation environments that are very hard to distribute over more computers, and not easy to integrate with scattered external information sources. The architecture presented is based on the event-based DES paradigm which is implemented by scheduled method invocation. Objects used in the simulation environment interact with remote, asynchronous subscribed clients in order to produce representations of the simulated system. The environment, which is implemented in Java, consists of a simulation and representation library and is integrated with several statistical libraries.