Ja teda o Linuxe nemám prakticky ani šajnu, ale na stránke FRD-u je to myslím popísané celkom pochopiteľne...
Launching
Windows Simply launch frd.exe or double click on frd.jar
Linux Run command ./frd.sh (as first put correct executable rights on this file )...atď (https://wordrider.net/freerapid/documentation.html)