I think I need to compile it. These are the programs  in the directory:
bmike1@mikes-laptop:~/Games/Assault Cube/1.1.0.4$ ls
assaultcube.sh 
demos                   
mods        
screenshots
bin_unix       
docs                    
packages    
server.sh
config         
install_desktop_menu.sh 
README.html 
server_wizard.sh
bmike1@mikes-laptop:~/Games/Assault Cube/1.1.0.4$


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:-)~MIKE~(-: