Command line argument

Source ports
The following extra options are available in source ports:

Using a response file
A response file can be used to store command line arguments you want to launch a Doom engine based game with. To use one, launch the game with the argument @.

The file format of these files is simply one parameter per line with a carriage return to terminate the line. Each parameter is typed exactly as you would type it on the command line. If you want the game to ignore a command, put "|" in between the "-" and the actual command word (e.g. "-|warp").