Half-Life: Alyx is coming in March, and we are celebrating early by making all games in the Half-Life Series FREE to play for Steam users, from now until the day it launches!

If you already have Steam installed, you can click the following links to start playing now!
Half-Life
Half-Life 2
Half-Life 2: Episode One
Half-Life 2: Episode Two

If you don't have Steam, you can download it here.

Half-Life: Alyx is set before the events of Half-Life 2 and the episodes, but the games share characters and story elements. The Half-Life: Alyx team believes that the best way to enjoy the new game is to play through the old ones, especially Half-Life 2 and the episodes, so we want to make that as easy as possible.

The Steam Autumn Sale 2016 starts now, with great deals across the Steam catalog throughout Black Friday and Cyber Monday*. Come back every day to see new featured titles, or check out the games that are recommended for you.

In addition to discounts on thousands of great games, join the nomination process for the Steam Awards. Nominate your favorite games across a variety of categories, and earn profile XP and badges for participating! Your nominations will help determine the finalists for each category. In December, you can vote on the winners for each category during the Steam Winter Sale. Learn more about the Steam Awards here.

*Offers end Tuesday November 29th at 10am Pacific.

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

Now through February 12th, shop the Steam Lunar New Year Sale for great deals on thousands of games!* Check back every day to see new front-page features, or follow the Lunar New Year adventure story to explore the Steam catalog.




*Discounts end February 12th at 10am Pacific unless otherwise listed.

For the next six days, take advantage of huge savings throughout the Steam store on thousands of titles. Plus, discover new and recommended games on your personalized Exploration Sale page here. Check back each day for new Daily Deals.

Today’s Featured Deals Include:

• Garry's Mod - 75% off
  
• Left 4 Dead 2 - 75% off
  
• Europa Universalis IV - 75% off
  
• Batman™: Arkham Origins - 75% off
  
• Assassin’s Creed® IV Black Flag - 50% off
  
• Next Car Game: Wreckfest - 50% off
  
• Endless Legend - 50% off
  
• State of Decay - 75% off
  
• Dark Souls™: Prepare To Die™ Edition - 75% off
  

The Steam Exploration Sale runs from now until 10AM Pacific Time, December 2nd. Complete information on Daily Deals and other special offers can be found on Steam.

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! 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.

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!