Valve's Doug Lombardi explains Valve's new game, announced during Microsoft's press conference - Left 4 Dead 2.

We revisit some of our best Keynotes of the year - Valve boss Gabe Newell explains how the company is using procedural narrative to simulate an almost limitless number of in-game stories, and how statistics are guiding the future of game design.

Valve has added an in-game store to its online shooter, which will stock both officially- and community-made items.

Company says it’s disappointed with the way it has treated PS3 customers so far, and criticises the lack of updates on the 360.

Indie developers reportedly impacted by new measures that require game creators to pay for the classification process.

Valve's sequel to debut on February 9 next year. Stephen Merchant also confirmed as voice actor.

League Of Legends developer responds to Valve's trademarking of 'DotA', aiming to keep the game open to modding community.

Company gives copies of Left 4 Dead 2 to 12,000 players unfairly banned from playing Modern Warfare 2 on Steam.