Updates to Team Fortress 2 have been released. The updates will be applied automatically when your Steam client is restarted. The specific changes include:

Team Fortress 2
Added Sniper/Spy milestone achievements as an additional way players can get the new unlockables
Arena Mode
Added tf_arena_use_queue server convar. Turn this on to get the old queue behavior. Default is off
Added tf_arena_round_time to set a timelimit on the round
Added the userid of the player who built the teleporter to the... [read more]

Updates to Team Fortress 2 have been released. The updates will be applied automatically when your Steam client is restarted. The specific changes include:

Team Fortress 2
Added Sniper/Spy milestone achievements as an additional way players can get the new unlockables
Arena Mode
Added tf_arena_use_queue server convar. Turn this on to get the old queue behavior. Default is off
Added tf_arena_round_time to set a timelimit on the round
Added the userid of the player who built the teleporter to the... [read more]

The Ball offers an adventure that puts you in the boots of a geologist who gets stuck in a cavern and bumps onto an ancient and Mesoamerican complex holding a mysterious ball. Must have v2.1 patch installed. Read the readme for details.
Get the full article at GameSpot.com

Updates to Team Fortress 2 have been released. The updates will be applied automatically when your Steam client is restarted. The specific changes include:

Team Fortress 2
The Ambassador now does full critical hits on headshots, instead of mini crits
The Dead Ringer now fully drains the cloak meter, even if the Spy leaves cloak early
Fixed Spy disguise menu not being visible in HUD minimal mode
Server log improvements:
Added "player_extinguish" event for servers to log when a Pyro extinguishes ... [read more]

CARY, N.C. (May 26, 2009) — Epic Games, Inc. is giving players more reasons than ever to jump online and check out Unreal Tournament 3 Black. This Thursday, May 28, will commence a long weekend in which anyone can log onto Valve's Steam digital distribution service, download Unreal Tournament 3 Black and play the game through the weekend free of charge. Pre-load for the follow-up Free Weekend begins today.

During the previous Free Weekend of Unreal Tournament 3 Black on Steam, the game ... [read more]

Updates to Team Fortress 2 have been released. The updates will be applied automatically when your Steam client is restarted. The specific changes include:

Team Fortress 2
The Ambassador now does full critical hits on headshots, instead of mini crits
The Dead Ringer now fully drains the cloak meter, even if the Spy leaves cloak early
Fixed Spy disguise menu not being visible in HUD minimal mode
Server log improvements:
Added "player_extinguish" event for servers to log when a Pyro extinguishes ... [read more]

Story, locations, and a lot of gameplay is revealed in this new trailer for Modern Warfare 2.
Get the full article at GameSpot.com

Updates to Team Fortress 2 have been released. The updates will be applied automatically when your Steam client is restarted. The specific changes include:

Team Fortress 2
Fixed Ambassador not using hitboxes to trace against players. It now works like all other bullet-firing weapons in the game
Fixed Ambassador shooting through gates
Fixed Ambassador not critting during the round win period
Fixed control point not being named correctly on Arena Sawmill
Fixed cloaked Spies being able to taunt at... [read more]

America's Army 3 (PC)Sign up now for the limited beta at FilePlanet!
Get the full article at ign.com

Updates to Quake II have been released. The updates will be applied automatically when your Steam client is restarted.

Unfortunately, this update is not compatible with saved games of previous versions of Quake II.
Get the full article at store.steampowered.com