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Half-Life 2 turns 20 this weekend, and we're celebrating with a big update: New developer commentary by the original team, Steam Workshop support integrated into the game, Episodes One and Two are bundled into the main menu, and tons more:

To celebrate the 20th Anniversary of the release of Half-Life 2, we got the team back together to talk about the game's development, the surprising hurdles we hit along the way, and the Half-Life 2 Episodes that followed it, in a two-hour documentary:

This is all following last year's 25th Anniversary of the original Half-Life, which we celebrated by updating the original 1998 game for modern systems, adding four new multiplayer maps, a documentary of its own, and much more:

RT @Steam: A bomb cyclone here in the Pacific Northwest isn't going to keep us down - starting next week, Wednesday November 27th, the Stea….

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RT @DOTA2: Crownfall -- An Ongoing Free-to-Play Story Event. #Dota2 #Crownfall .

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Half-Life turns 25 this weekend, and we're pushing a big update to bring back some of that 1998 feeling with restored original launch day content, brand new multiplayer maps, a look behind the scenes with the original development team, and more:

Half-Life: Deathmatch wasn't quite chaotic enough, so we added a bunch of new sprays, plus we dropped in some new multiplayer models: Ivan the Space Biker and early Barney join from Half-Life's pre-alpha days, plus team favorites Skeleton and Too Much Coffee Man. See you online!

Half-Life is free to keep if you get it today, and the rest of the Half-Life franchise is on sale, as part of the 25th anniversary celebration: