Updates for Counter-Strike: Source, Day of Defeat: Source, Half-Life Deathmatch: Source, Half-Life 2: Deathmatch, and the Source SDK 2013 Base have been released. The updates will be applied automatically when you restart the game. The major changes include:

-Fixed physics not operating at the correct tickrate when specifying non-standard -tickrate options on the command line
-Fixed viewing demos recorded at a non-standard tickrate causing the next listen server hosted to be at that tickrate... [read more]

http://www.youtube.com/watch?v=5H2rL-lBxRs

Courtesy of Nathan Andrews on YouTube:

Video created by: Nathan Andrews
Edited by: Andrea Andrews

I've added full head tracking and weapon tracking to Half-Life 2 in preparation for the Oculus Rift dev kit launch. Once the official rift apis are available I'll integrate them, giving people ~70 hours of content (this also works for episode 1 & 2, the lost coast and tons of user generated maps, etc) that they can use to test out their Rift.

This video shows a handful of scenes of me ... [read more]

Two unidentified fans were found outside of Valve's offices in Bellevue, Wash. today pleading for the release of Half-Life 3...
Get the full article at ign.com

Updates to Team Fortress 2, Counter-Strike: Source, Day of Defeat: Source and Half-Life 2: Deathmatch have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Source Engine Changes (CS:S, DoD:S, TF2, HL2:DM)
Fixed a bug in SourceTV that would sometimes corrupt demo data

Team Fortress 2
Cow Mangler changes
Fixed the charged shot sometimes doing more damage than intended.
Fixed a bug that caused the projectiles to stay in the w... [read more]

Updates to Team Fortress 2, Counter-Strike: Source, Day of Defeat: Source and Half-Life 2: Deathmatch have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Source Engine Changes (CS:S, DoD:S, TF2, HL2:DM)
Updated the localization files

Team Fortress 2
Fixed a Linux dedicated server crash caused by the Replay director
Crash would happen whether the server was capturing Replays or not
Fixed the Map Stamps Collection bundle m... [read more]

Remember when Half-Life came out in 1998 and it was one of the best first-person shooters ever made? Remember when the same thing happened in 2004 when Half-Life 2 came out? And in 2007 with Half-Life 2: Episode Two? Not too many franchises out there boast such preposterous standards of quality. Few can hope to be as memorable. None have induced such acute anxiety in their fan bases...
Get the full article at ign.com

Updates to Team Fortress 2, Counter-Strike: Source, Day of Defeat: Source and Half-Life 2: Deathmatch have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Source Engine Changes (CS:S, DoD:S, TF2, HL2:DM)
Fixed a Linux dedicated server crash in vphysics.so
Get the full article at store.steampowered.com

Updates to Team Fortress 2, Counter-Strike: Source, Day of Defeat: Source and Half-Life 2: Deathmatch have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Source Engine Changes (CS:S, DoD:S, TF2, HL2:DM)
Reduced CPU usage for idle servers

Team Fortress 2
Added the Splendid Screen, Ali Baba's Wee Booties, and the Mantreads to the whitelist for Medieval mode
Added a server console message when a player is sent to the server... [read more]

Updates to Team Fortress 2, Counter-Strike: Source, Day of Defeat: Source and Half-Life 2: Deathmatch have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Source Engine Changes (CS:S, DoD:S, TF2, HL2:DM)
Updated the shared interfaces for the TF2 Free To Play update
Updated the shared localization files

Team Fortress 2
TF2 is now Free To Play
Added the Uber Update: http://www.teamfortress.com/uberupdate/
Added PL_Barnblitz, a new Payload map
Added all kinds of ... [read more]

Updates to Team Fortress 2, Counter-Strike: Source, Day of Defeat: Source and Half-Life 2: Deathmatch have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Source Engine Changes (CS:S, DoD:S, TF2, HL2:DM)
Fixed a client crash when disconnecting from servers with sv_pure set to 1
Fixed a client crash in the material system
Fixed a client crash caused by using alt-tab while playing

Team Fortress 2
Added the Concheror and the... [read more]