You asked about Metaverse
8 people built something like it. 2 are gone.
That is 25% of the ones whose fate we could settle, against 23% across the whole register.
| Launched | What it was | Today |
|---|---|---|
| 2012-06-01 | Communication app for K-8 teachers, kids, and families · classdojo.com | still up |
| 2019-06-01 | YCGather Building a better way to meet online. · gather.town | still up |
| 2019-01-01 | YCrct AI build AI NPCs · rct.ai | still up |
| 2016-06-01 | YCSeerslab We are providing AR technologies and contents to app developers · argear.io | gone |
| 2022-01-01 | YCKoala Minecraft for Teachers · teachwithkoala.com | still up |
| 2022-06-01 | Creating genre-defining multiplayer VR games. · ruffnauts.com | still up |
| 2020-06-01 | Social avatar platform for VTubers · hyper.online | gone |
| 2019-06-01 | Chat game universe · gamebytes.io | still up |
How this compares
The register re-probes every domain it holds. Some that answered last month stop answering. We send that list — what went quiet, and what it was — once a month. Nothing else.
How this was made. Show HN entries are every post from 2021 to 2023 with at least five points that linked to its own domain; code hosts and free hosting are excluded, because a repository outlives the effort behind it. Product Hunt entries needed 100 votes — a far higher bar, so they are the promoted top slice rather than a like-for-like sample. Both are judged by asking the domain whether it still answers: gone means it no longer resolves, refuses the connection, serves a parking page, or says plainly that it shut down. An HTTP error is not counted as gone — a server answering 404 is one somebody still pays for, and an audit of 25 gone-calls found two such sites alive with only a moved homepage. Y Combinator entries use the status YC publishes itself, which is why only those can say acquired. Squatted domains — a lapsed name now serving somebody else's site — are not detected, so these figures run slightly low.