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Re:The metaverse is already here – it's Minecraft by thinkmassive on Tuesday November 02, 2021 @02:55PM (#29085837)
It was called VRML[0] and was superseded by X3D[1]

[0] https://en.wikipedia.org/wiki/VRML

[1] https://en.wikipedia.org/wiki/X3D

Re:The metaverse is already here – it's Minecraft by prox on Tuesday November 02, 2021 @03:09PM (#29086020)
The article mentions a (discontinued) 3d browser, which would be a necessity probably for any type of metaversial web.