Last week's post on Second Life's huge geographic size as a unique selling point brought up some interesting points. Technically SL is probably not the "largest" if we're only talking about geographic size, but I think the apples to apples comparison question is precisely this:
What is the Geographically Largest, Contiguous, Multi-User, Fully Explorable, Online Virtual World?
By "contiguous", I mean there are no load screens in between areas, and by "fully explorable" I mean just that: Some online worlds like Eve Online, MS Flight Simulator, or even single-player worlds like Starfield are extremely large, yes, if judged only by map size. But the actual user explorable part of the map size is much less than that. I.E., MSFS basically models the entire world, but you can't, say, land your plane and walk into a nearby diner.
Video (also) via @brainthink.bsky.social, who has also happened to explore Second Life, and found it technically wanting: "The SL mainland is geographically large," they explain, "but the rendering times of structures and objects is absurdly slow. As a real life sailor, I tried sailing in SL once on a rezzed sailboat and quickly gave up. It wasn’t enjoyable at all, sadly."
That has at least somewhat improved since the SL grid moved to the Amazon Cloud in 2020. And while there are thousands of private sims that are not generally accessible, or require a load screen when teleporting there, the major mainland areas, as reader Kaylee West argues, makes for some sprawling, serendipitous adventures -- notwithstanding property owner ban lines: