Brendan Greene, the modder-turned-millionaire who designed battle royale game PUBG: Battlegrounds, wants to make his studio's next game a "metaverse", although he says he's wary of using the term. The project is called "Artemis" (at least for now) and you won't be seeing it any time soon. That's because the studio is still working on the tech behind it all, and plans to release two other games before it. Meaning it'll be 10-15 years before it actually comes out.
Greene describes Artemis as an internet-like platform where users create and share things, but doesn't say specifically what those things might be. He doesn't know how his user-led "multiverse of worlds" will be moderated, or how it will prevent copyright infringement, or what makes this idea distinct from, say, Roblox. He is nonetheless "full of confidence".