Result Command Line Parameter
Full screen mode -fullscreen
Set heap size -heapsize 80000
Set window size -width 1024 -height 768
Graph connection throughput in multi-player; 0 is off, 3 is most detailed -netgraph [0-3]
Force DirectX <version> compatibility; less than 8 not advised -dxlevel [number]0
Load all level data at start of level -preload
Use indicated filename for shader library -shaderdll [filename]
Look around by using mouse -mouselook
Add debug messages to ingame console -condebug
Software mode for rendering -sw
Toggle anamorphic widescreen mode -r_anamorphic [0 or 1]
Run in window -startwindowed
Run in window -window
Run in window -windowed
Unknown -mat_preloadshaders