cvar 

A Cvar is a "console variable."

I needed a list of cvars for Doom 3 so I could keep a smooth 60 fps.

cvar by Dark Tree February 26, 2005

cvars 

Cvars are "console variables".

I needed a list of cvars for Half-Life 2 so I could tweak my fps.

cvars by Dark Tree February 26, 2005