If you want to access the older version of Half-Life 2, that’s still an option: you’ll just have to roll back to “a publicly visible Beta branch ... before-seen concept art from Episode ...

As part of Valve's celebration of Half-Life 2's 20th anniversary, the studio has released 17 minutes of early development ...

Valve has released the Half-Life 2 Anniversary update to celebrate the ... This second edition of Raising The Bar adds new concept art from Episode One and Episode Two, plus a look at the never ...