Save 75% on Portal 2 during this week's Midweek Madness*!

Portal 2 draws from the award-winning formula of innovative gameplay, story, and music that earned the original Portal over 70 industry accolades and created a cult following.

The single-player portion of Portal 2 introduces a cast of dynamic new characters, a host of fresh puzzle elements, and a much larger set of devious test chambers. Players will explore never-before-seen areas of the Aperture Science Labs and be reunited with GLaDOS, the occasionally murderous computer companion who guided them through the original game.

The game’s two-player cooperative mode features its own entirely separate campaign with a unique story, test chambers, and two new player characters. This new mode forces players to reconsider everything they thought they knew about portals. Success will require them to not just act cooperatively, but to think cooperatively.

*Offer ends Friday at 10AM Pacific Time

Save 75% on Portal 2 during this week's Midweek Madness*!

Portal 2 draws from the award-winning formula of innovative gameplay, story, and music that earned the original Portal over 70 industry accolades and created a cult following.

The single-player portion of Portal 2 introduces a cast of dynamic new characters, a host of fresh puzzle elements, and a much larger set of devious test chambers. Players will explore never-before-seen areas of the Aperture Science Labs and be reunited with GLaDOS, the occasionally murderous computer companion who guided them through the original game.

The game’s two-player cooperative mode features its own entirely separate campaign with a unique story, test chambers, and two new player characters. This new mode forces players to reconsider everything they thought they knew about portals. Success will require them to not just act cooperatively, but to think cooperatively.


*Offer ends Friday at 10AM Pacific Time

Today's Deal: Save 75% on Left 4 Dead 2!*


Look for the deals each day on the front page of Steam. Or follow us on twitter or Facebook for instant notifications wherever you are!

*Offer ends Monday at 10AM Pacific Time

The Steam Sale is here! Take advantage of huge savings on thousands of PC, Mac and Linux titles. Check back often to take advantage of our eight-hour Flash Sales.

Today's Daily Deals include:

• Sid Meier's Civilization V 75% off
  
• FarCry 3 75% off
  
• FEZ 75% off
  
• Godus 50% off
  
• Metro: Last Light 66% off
  
• PayDay 2 55% off
  
• Portal 2 75% off
  
• The Wolf Among Us 33% off
  
• Torchlight II 75% off
  

Add games to your Steam Wishlist and be notified when a game from your Wishlist goes on sale, or shop for games using the Steam Mobile App, available for iOS and Android.

Be sure to check Steam every day to see new featured deals.

The Steam Sale is here! For the next six days, take advantage of huge saving on thousands of PC, Mac and Linux titles. Check back often to take advantage of our eight-hour Flash Sales.

Today's Daily Deals include:

• Skyrim 75% off
  
• Antichamber 75% off
  
• Left 4 Dead 2 75% off
  
• Outlast 66% off
  
• Prison Architect 50% off
  
• Rogue Legacy 66% off
  
• Sleeping Dogs 80% off
  
• Terraria 75% off
  
• The Walking Dead 75% off
  

Add games to your Steam Wishlist and be notified when a game from your Wishlist goes on sale, or shop for games using the Steam Mobile App, available for iOS and Android.

Be sure to check Steam every day to see new featured deals.

Today's Deal: Save 75% on Portal 2!*


Look for the deals each day on the front page of Steam. Or follow us on twitter or Facebook for instant notifications wherever you are!

*Offer ends Sunday at 10AM Pacific Time

Now until Monday, August 5th at 10am pacific, pick up the Good Friends Bundle and get these games for a great price!

BIT.TRIP Presents... Runner2: Future Legend of Rhythm
Runner2 - Good Friends Character Pack
Cave Story+
Machinarium
Portal 2
Psychonauts
Super Meat Boy

Save 75% on Half-Life 2 during this week's Midweek Madness*!

1998. HALF-LIFE sends a shock through the game industry with its combination of pounding action and continuous, immersive storytelling. Valve's debut title wins more than 50 game-of-the-year awards on its way to being named "Best PC Game Ever" by PC Gamer, and launches a franchise with more than eight million retail units sold worldwide.

NOW. By taking the suspense, challenge and visceral charge of the original, and adding startling new realism and responsiveness, Half-Life 2 opens the door to a world where the player's presence affects everything around him, from the physical environment to the behaviors even the emotions of both friends and enemies.

The player again picks up the crowbar of research scientist Gordon Freeman, who finds himself on an alien-infested Earth being picked to the bone, its resources depleted, its populace dwindling. Freeman is thrust into the unenviable role of rescuing the world from the wrong he unleashed back at Black Mesa. And a lot of people he cares about are counting on him.

*Offer ends Thursday at 4PM Pacific Time

Play Left 4 Dead 2 for FREE starting now through Sunday at 1PM Pacific Time. You can also pickup Left 4 Dead 2 at 75% off the regular price!*

If you already have Steam installed, click here to install or play Left 4 Dead 2. If you don't have Steam, you can download it here.

*Offer ends Monday at 10AM Pacific Time

Today's Deal: Save 75% on Counter-Strike: Condition Zero!

Look for the deals each day on the front page of Steam. Or follow us on twitter or Facebook for instant notifications wherever you are!