1. cd server
2. mvn clean install
3. java -jar target/server-0.4.5-SNAPSHOT.jar (*)
4. open http://localhost:8080/babylon/multiuser-test.html with TWO browsers

Main entry point is http://localhost:8080/babylon/avatar-selection.html - choose your avatar and enter a world. Use content/worlds/template as a template for your own multiuser worlds, it's all published at http://localhost:8080/content/

*) Java 17 users instead use this:

java --add-opens java.base/java.lang=ALL-UNNAMED --add-opens java.base/java.nio=ALL-UNNAMED --add-opens java.base/java.io=ALL-UNNAMED --add-opens java.base/java.util=ALL-UNNAMED --add-opens java.base/java.util.concurrent=ALL-UNNAMED --add-opens java.base/sun.net.www.protocol.http=ALL-UNNAMED --add-opens java.base/sun.nio.ch=ALL-UNNAMED -jar target/server-0.4.5-SNAPSHOT.jar

Fully featured live demo/test instance of current development version is available at http://www.antofy.io/