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Half-Life® 2: Episode Two is the second in a trilogy of new games created by Valve that extends the award-winning and best-selling Half-Life® adventure.
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Danger Close given greenlight for a sequel.
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Updates to Call of Duty: Black Ops have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Call of Duty: Black Ops
Shader Warming fix for compatibility with upcoming Nvidia driver
Additional stability improvements
Zombie levels DOA and Five unlocked
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Crysis 2 is now available for pre-purchase on Steam. Pre-Purchase before March 26, 2011 and receive a free upgrade to the Limited Edition.

Limited Edition includes the following Multiplayer bonus content:

Hologram Decoy
- SCAR weapon attachment
- Project a hologram of yourself used to deceive and confuse enemies

SCAR weapon skin – digital
- Medium assault rifle
- High accuracy and fire rate
- Unique digital camouflage variant

Unique Platinum Dog Tag
- Displays your rank
- Can be... [read more]

Crysis 2 (PC)Suit up.
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Check out this extended trailer with gameplay footage for Crysis 2.
Get the full article at GameSpot.com

Updates to Counter-Strike: Source Beta have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Counter-Strike: Source Beta
Marked the "mat_diffuse" convar as a cheat to protect against exploits.
De_Inferno
Minor fixes
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Updates to Left 4 Dead 2 have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Left 4 Dead 2
Newer version of Death’s Door Mutation with fewer defibs
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Crysis 2 (PC)Crytek CEO "completely overwhelmed" by support.
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)
Improved the version mismatch error message received when connecting to a server with a different version than your client

Team Fortress 2
Made Bill's Hat always tradable.
Fixed a client crash caused by a malformed custom... [read more]