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Useful Steam Launch Options for Source Games


DG | Veteran
DG | Member
Useful Steam Launch Options for Source Games

Submitted by bluemwhitew on Wed, 03/07/2013 - 16:59

What are Steam Launch Options?

Launch Options are essentially command-line parameters that can change the behavior of Steam applications when they are run.

What can I use Steam Launch Options for?

It depends entirely on which Launch Options are available for that particular application, game, or tool. Launch Options vary considerably across applications, though you'll tend to find that games which share the same engine will have similar (if not the same) Launch Options available.

For now, we'll be demonstrating how you can use Launch Options to tweak your favorite Source games.

Useful Launch Options for Source games

Here's a non-exhaustive list of popular/useful Steam Launch Options for Source-based games, including Counter-Strike: Source, Counter-Strike: Global Offensive, Day of Defeat, Left 4 Dead, Left 4 Dead 2, Portal, Portal 2, etc.
Restores audio, video, and other performance settings to their default values (based on the current hardware detected). This will also ignore any settings inside configuration files until removed.
Launches the game with the developer console active (even if you haven't got the console enabled).
See refresh rate.
See fullscreen.
Forces the game to start in "fullscreen" mode.
Enables support for Logitech G15, G510, and G19 keyboards.
See height.
•-height <height>
Forces the game to start with the specified height (ideally use this with width).
Sets the game's priority to High.
Sets the game's priority to Low.
Skips the Valve video opening sequence.
See refresh rate.
•-refreshrate <refreshrate>
Forces a specific refresh rate (ideal when gaming on a 120Hz monitor).
See windowed.
See windowed.
See width.
•-width <width>
Forces the game to start with the specified width (ideally use this with height).
See windowed.
Forces the game to start in "windowed" mode.

For a complete list of Steam Launch Options, visit the Command Line Options page on the Valve Developer Community website.