Left 4 Dead, Valve's latest game, has very recently been released, and take it from me, this game is
awesome. The demo's got nothing on the full game, by the way.
Playing through a campaign with some friends is probably one of the most intense gaming experiences around. Personally I just played through 'Dead Air' with
Trapt and a few random guys, and it was a lot more fun than I could have imagined. The last level is intense, and the credits bit at the end is great.
If you have the game, or plan to, a good way to organise games is through the
TWHL Steam Community Group. Oh, and watch out for
Hunters!
[hijack]Also, in case you're actually mapping and not playing L4D right now, here's a bunch of tutorials we've just (or not) received for you outcasts covering things that may have been pretty useful back in the day..
Adding Effects to Source Textures by
the_best_flash is an amazingly detailed and thorough tutorial with anything you'll ever need to know about Source textures. Possibly the longest article in TWHL to date, a must-read for any Source mapper.
Explaining a similar subject, only in GoldSource,
Detailed Textures in Half-Life by
hlife_hotdog gives you all the steps needed to make your textures sharper and far more vivid.
And finally,
Making a working plug and combine generator by
38_98 with a name speaking for itself, explains the implementation of the aforementioned objects you've seen many times in Half-Life 2 and its mods.
Kudos to the authors!
-Daub