Next year Valve will release...a game!
Do you like Collectible Card Games? Do you like Dota? Do you like having aggressive behavioral analytics run on you at all times? Then Artifact is for you!
I don't see a site yet. Are there any details out there? (There are none in the trailer.)
I'm excited to see any sort of game development at all at Valve; we'll see if this actually comes out next year!