Erik Wolpaw, best known for his work on Portal and Half Life 2's Episodes, has rejoined Valve after more than a year away.
Valve has U-turned on Artifact card balance after complaints from the game's community called for tweaks.
Valve has revealed it will be running a 128-player "preview tournament" for its upcoming Dota 2 card game, Artifact.
Valve's beta test for its upcoming Dota 2-themed virtual card game Artifact has been delayed.
Players who had registered their interest in participating in the semi-open beta have since received emails informing them that the test has been pushed back to 19th November 2018.
"You are receiving this email as an attendee of The International Dota 2 Tournament or someone who has registered an Artifact beta key," the email says.
Valve has renamed an Artifact card after it was accused of being racist.
Valve has announced that Artifact, the Dota 2 card game made by Richard Garfield, is due to be released on Steam on 28th November.
The game is also due to be shown publicly at this year's PAX West, so we should hear a little more about it in a month's time.
Valve has kept its cards close to its chest so far, but what we do know is Artifact will mix features from Dota 2 with those of a traditional trading card game. Like in Dota 2, players will be able to control three lanes of action at the same time, and there will be some familiar faces in the form of heroes and creeps. In the latest press release, Valve repeated its claim that Artifact will "give Trading Card Game enthusiasts the deepest gameplay and highest fidelity experience ever in a fantasy card game".
Steam and Vive have preoccupied Valve in recent years but the revered creator of Half-Life has vowed to "start shipping games again".
Valve has announced a new game. No, it's not that one.
The game is Artifact: The Dota Card Game and it is, as you might imagine, a collectible card game spin-off from the hugely-popular Dota.
The full game launches at some point in 2018 for platforms unknown, according to this fairly vague teaser: