Here is where I describe the Stage standalone program.
USAGE: stage [options] <worldfile1> [worldfile2 ... ]
Available [options] are:
--clock : print simulation time peridically on standard output
-c : equivalent to --clock
--gui : run without a GUI
-g : equivalent to --gui
--help : print this message
--args "str" : define an argument string to be passed to all controllers
-a "str" : equivalent to --args "str"
-h : equivalent to --help"
-? : equivalent to --help