Console variable/en
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A console variable, frequently shortened to cvar, and occasionally ConVar, is a runtime variable which can be modified by the user in the developer console, in addition to being modifiable by game code.
- In
id Tech 2 and 
GoldSrc, cvars use the C struct cvar_t. 
Source replaces this with the C++ class ConVar.
For a list of cvars, see Category:Console variables.
