It's always been multiplayer.
And I don't know about the others, but I won one of the developer's premium bundles from a stream about 2 weeks ago and started playing it again because why not? 60 bucks worth of free stuff is enough for anyone to come back.

But it's been getting a lot of good updates lately. I let a few of the updates stack up and because I won, i'm playing it all now.
this game is a massive grind btw. Even more so than Monster Hunter, but that's what you get for a free to play game.