Sean “Day9” Plott, event host of this year’s The International DotA 2 Championships, showed the crowd a teaser video from Valve, which announced Artifact, a digital card game based on Valve’s DotA 2.
There is little information about the game at the moment, other than a handful of vague information from Day9 himself, which has since been posted on Reddit
According to the video teaser, the game is set to be released some time in 2018. The game now has a Twitter account, so we could expect to see more details there in the coming months.