To access in Steam
- Right-click on the game title under the Library in Steam and select Properties.
- Under the General tab click the Set launch options... button.
- Enter the launch options you wish to apply (be sure to separate each code with a space) and click OK.
- Close the game's Properties window and launch the game.
otherwise rightclick on the SC4 icon on your desktop and add into the "Target" field
"C:\Program Files\Maxis\SimCity 4\Apps\SimCity 4.exe"
add a space after the last quote and add in the command line option, like so
"C:\Program Files\Maxis\SimCity 4\Apps\SimCity 4.exe" -w -intro:off -r800x600x16
in steam you only have to enter the command line itself.
add these different properties for different effects each with a space in between it and its predecessor:
-w
To change back to full use -f (or this -r like so -r800x600x32)
-d:Software
-audio:off
Turns all the audio output off
-r[W]x[Y]x[Z]
Where:
WxY is a resolution (without using -CustomResolution:enable the screen resolution has to be either: 800x600, 1024x768, or 1280x1024)
Z is colour depth (32 or 16)
-Intro:off
Turns the introductory splash screen and video off, instead taking you straight to the game
-CustomResolution:enabled
Enables custom resolutions including the 16:9 ratio
-d:DirectX/Software/OpenGL
Change the rendering mode of the game, either using DirectX or OpenGL libraries or software rendering
-CPUPriority:low
-CPUCount:X
Where x is the number of the processors your computer has.
CPUPriority lets other processes (programs) use the processor more when the game isnt in use.
-IgnoreMissingModelDataBugs:on/off
Off (default) shows all missing models as brown boxes.
On just doesn't show anything for them at all.
-BackgroundLoader:on/off
On (default) loads all the none visible models in the background, whereas Off doesnt
-l:english
-AllowMultipleInstances
-Cursors:disabled/bw/color16/color256/fullcolor
-CustomCursors:disabled
Sets the color depth of the game cursors. Some hardware doesn't like some cursor color depths.
Disables the use of application-supplied versions of standard system cursors such as the arrow or hand cursor. Normally, the customized application-supplied versions are used.
-ExceptionHandling:off
Disables application exception handling, which provides for safer shutdown of the app in case of a crash.
-gp
Enables game pausing when you switch to another application. This is useful for if you go away from the game and you want it to sleep while it is in the background. This is a stronger form of the -CPUPriority command line option.
-IgnoreMissingModelDataBugs:on/off
If enabled, then the system does nothing when requested to display an object for which there is no graphical representation. By default this option is disabled and objects that are missing a graphical representation are drawn as a large "package" that suggests you can download the graphics for this object from the SimCity web site or similar.
-IME:enabled/disabled
Enables application-supplied IME (input method editing) for Asian systems. If disabled, then the default operating system IME will take control. By default, IME is enabled. If it is disabled via this command line option, you'll probably want to run the app in windowed mode (-w) in order to take advantage of the OS-supplied IME GUI.
-RenderProp:,value -RenderProp:" value"
Forces a render property to be set. See documentation on render properties for a discussion of them. You can use this command line multiple times on a single command line.
-Restart
This is an internal command line used to indicate that a prior instance of the app launched the current instance while it was shutting down. This causes the current instance to wait for the previous instance to fully exit before proceeding. This is useful for automatic app restarting during certain operations.
-UserDir:path
Specifies the directory where the users game directory is. If the default subdirectories of "Regions\", "Plugins\", and "HTTPCache\" arn't found, then it creates an instance of, (in the case of Regions, it copies the default set over). The default game data directory defaults to being the same directory as the game installation directory. Quotes are necessary if the path name has spaces. Make sure there is a "\" on the end of your path or it creates directories like "testPlugins\" and "testRegions\"
-WriteLog:on/off
If On, this causes the app to write a log file that describes the user's system configuration. The file is named "computer-config-log.txt" and is placed in the same directory as the program executable.
-CodePage:id
Sets the code page portion of the locale for the C runtime library. Normally, the code page is determined by the language the application runs in (see the -l command line option)
-ConfigLog:server | off
Sets the destination of where to write the computer configuration log specified by the -WriteLog command line option. By default, the server is "studiotech.max.ad.ea.com".



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