Download JDigitalSimulator from GitHub
(latest release, zip-package containing the lastest excecutable jar-file and some plugin examples)
Start by executing the jar- or exe-File, or by using the following command:
java -jar jds-2.x.x.jar
JDigitalSimulator requires the latest release of Java available here. Browse through the archives to find all stable releases. For legacy reasons please also have a look at the old archives in case you are looking for an old non-open source release.