I've just completed my Half Life 2 Tweak Guide, and it's now available for you to read. In true TweakGuides tradition it contains full descriptions of all the in-game settings – something Valve neglected to provide – as well as clear descriptions of the most useful command variables for the game, and how to use them correctly so you can undertake some serious tweaking. All this is rounded out with Steam configuration and troubleshooting advice, and a bunch of general tips to ensure you get the most out of "the greatest PC game ever".