Artifact is a card game made by Valve set in the DOTA 2 universe. The game had a huge cult following but declined in popularity rapidly. Like many other journalists stated, Artifact has the formula for success but something is missing.
I'm in the same boat. I love Artifact and want to see it succeed but there's something about it that doesn't make me want to come back. Although the flow of the menus are a bit lacking, the UI is stunningly beautiful. Some people say that Artifact is a bit intimidating to get into and I would agree. A random person on the street might not be able to understand who's winning at a single point in time. It kind of has the opposite of Magic: The Gathering. Magic is difficult for people to wrap their head around when it comes to playing while Artifact is difficult to wrap your head around when it comes to viewing.