The current launcher does not work on Ubuntu 21.10 for a variety of reasons.   a) The version of JFX shipped with the launcher crashes on Wayland. This is fixed in current versions of JFX. Workaround: GDK_BACKEND=x11 ./WurmLauncher b) The launcher tries to load a GTK library which is not present in the bundled library folder, loads a system library linked against libjpeg.so.8, and dies. If launched with debug information ( _JAVA_OPTIONS="-Dprism.verbose=true" GDK_BACKEND=x11 ./Wur