Q4Max adds features which make Quake 4 suitable for use for competitive play (such as timeouts, teamlock, brightskins, chattokens, auto action demo recording), fixes and general improvements to the base game, without changing the underlying Quake 4 gameplay. This makes Q4Max the standard mod for competitive play, and it was used by all the major eSports competitions - CPL, ESWC, WSVG, GGL, CB, QuakeCon, and more.