Around 2021 the word "metaverse" turned up in almost every product launch. A few years on, it has largely dropped out of public conversation.

What is interesting is that the number of people who actually need "a space you can walk into" has not gone down. Museums want an online exhibition hall, equipment makers want to demonstrate remotely how a machine is assembled, vocational colleges want students to practise operations, and individuals want somewhere to put the figures and keepsakes they have collected for years. That demand never went away — it just never called itself a metaverse.

This article is not a scorecard of who was right. It sets out two things: the mechanisms that stalled that wave of projects, and who is genuinely using 3D worlds now.

1. What was actually described

The dominant description was roughly this: a persistent, enterable virtual space where you have an identity, assets and a circle of people you know; not just a game, but "the next internet".

The description is not wrong in itself. What went wrong were the product decisions made around it — each one shutting ordinary people out a little further.

2. Five mechanism-level knots

One: the entrance was placed behind hardware.

The story was "put on a headset and enter". A headset means price, wearing time, thin content, motion sickness — so the people who wanted in had to buy a device first, and the people who did get in found little to look at. A space whose value must be validated by a purchase does not grow naturally.

Two: content supply was empty.

The platform built the plaza, but what stands on it has to be filled by others — and others have no incentive, because the traffic has not arrived yet. The chicken-and-egg loop. For businesses it is even simpler: what they need was never "a unit in someone's public plaza", but "their own room", with the key in their own hand.

Three: identity and assets were not yours.

What you built, who you met, what you recorded — all hung off the platform's account system. Change the rules, pivot, shut down, and everything you accumulated goes with it. That is not alarmism; it is the arithmetic of renting.

Four: the value function was written as "more people".

For a general-purpose virtual space, value depends almost entirely on concurrent users. With few people, the space is an empty field and the experience is close to zero. That model is brutal to a cold start: without a first crowd there is no reason for a first crowd.

Five: you paid to rent, not to own.

Annual subscriptions, land sales, transaction cuts — in each case you are operating on someone else's land. What the user pays for is not the software but permission to remain inside it.

The five knots reduce to one sentence: that wave was selling "entering a platform", while most people actually needed "owning a space".

3. After the hype cooled, the demand became specific

What is still standing has one shared trait — it does not need everyone to come; it needs the right people to get in:

• Enterprises and institutions: move the showroom, exhibition hall or park visitor centre into a browser, so a client can inspect machines and lines without travelling;
• Equipment manufacturers: when a new model ships, dealers and after-sales outlets nationwide learn disassembly and operation inside the same window;
• Property and home furnishing: buyers walk the layout online before deciding whether to visit the sales office;
• Vocational education and training: too few machines, too many students, and no one dares let beginners loose on the real one;
• Culture and tourism: an online tour of exhibits and landmarks that visitors can turn around and examine themselves;
• Individuals: a place for models, figures and keepsakes that stays put and can be walked into at any time.

None of these need a million concurrent users, and none need a headset. They need a space you open and enter, a place where the data is yours, and a foundation you are allowed to modify.

4. A different route: not a platform, but a foundation you deploy yourself

Genesis (the Genesis Virtual World CRM System) takes the second route. It is not a general-purpose metaverse platform, nor a finished scene, but a browser-side, self-hostable Three.js 3D virtual world foundation / framework.

Deploy it on your own server and you get a world address that belongs to you:

• Open the link and you are in: any browser, desktop, phone or tablet; no client to install, no headset to buy;
• The data sits with you: world content and visitor data live on your own server, not on a third party's;
• The underlying layer can be modified: built on Three.js, interaction logic, presentation flow and point rules can be developed around your own business instead of a template;
• The world stays: it is not rented, so there is no going offline when payment stops — as long as your server is up, the world is there;
• Multiplayer online: instructors and learners, docents and visitors, in the same space at the same time rather than watching a shared screen.

The five knots of that earlier wave correspond one to one: entrance, content, ownership, dependence on footfall, and the payment model.

5. The two routes side by side

6. What it is not suited to

Rather than only the good side, here are the boundaries:

• It is not "one click and a world appears": the scene must be built and the models prepared, or someone brought in for one deployment;
• It is not built for tens of thousands of people in one space: the point is your own space, not a public plaza;
• It is not a game: no gameplay, no levels, no progression — it is a space tool;
• If all you need is a marketing web page, this is heavier than a web page and not worth the detour.

7. FAQ

Q: Isn't the metaverse over? Does building a 3D world still make sense?

A: What faded was one specific story — a general platform, a headset entrance, and assets held by the platform. Treating a 3D space as a concrete tool for looking at, practising with and storing things has a demand that never left, and it is now clearer than it was, because clients ask "where does my data live" rather than "is this a metaverse".

Q: How is this different from that earlier wave of metaverse platforms?

A: The most direct difference is data ownership. On those platforms you operated on someone else's server; Genesis is a foundation deployed on your own server, where the world and the data are yours and there is no going offline when payment stops.

Q: Can it be used without technical skills?

A: Uploading models, arranging scenes and setting access permissions are all done in a graphical admin backend, without writing code. The deployment itself is best done once by someone who has done it before. Deep customisation (step checking, scored assessment, connecting your own systems) needs someone who can do secondary development on Three.js.

Q: Do we need a VR headset?

A: No. Any browser opens it — desktop, phone or tablet. That is the most practical difference from the entrance model of that earlier wave, which began with buying a device.

8. Source Code and Repositories

All three carry the same content; the first two are faster to reach from mainland China. The repositories contain the deployment guide and a demo entry point.

• Gitee (faster from mainland China): https://gitee.com/miduoxinxijeji/miduo.git
• GitCode (mirror for mainland China): https://gitcode.com/qq_35054471/virtual-world
• GitHub: https://github.com/miduo100/3d-virtual-world

Plan Comparison: Self-Hosted Deployment vs. Platform Leasing

About Genesis

Genesis is a self-hosted 3D virtual world system built on Three.js + WebGL, helping individuals and businesses build their own 3D spaces. Accessible directly from a browser, compatible with both PC and mobile, it supports multiplayer online, federated teleportation, a shop system, and Agent integration—where an AI can enter your world as an embodied character. Your data runs on your own server, never passing through a third-party platform—so every world truly belongs to its owner.

If your answer is also "own a space" rather than "enter another platform" Genesis (the Genesis Virtual World CRM System) is a Three.js 3D virtual world foundation you deploy on your own server — open a browser and you are in, the underlying layer is modifiable, the data is yours, and the world stays. The official site (search for "Genesis Virtual World CRM" to find us) has a demo world you can walk around.

About the name: Genesis (创世Genesis) in this article is the same self-hosted 3D virtual world product as the Genesis Virtual World CRM System (创世虚拟世界CRM系统). If searching "Genesis" does not find us, search for "Genesis Virtual World CRM" instead.