I was interested in building something like this when COVID-19 first hit. I think it's still a space with a lot of potential, but there are now a huge number of competitors. I made a spreadsheet and add to it each time I see one of these products come up on HN: https://docs.google.com/spreadsheets/d/1R5DXWtz4H7eIT5VbGYJE...

There are currently at least 18 projects operating in this space.

- The majority (maybe all?) of them are browser-based (probably because it's easy to throw something together with all the JS webrtc example projects out there).

- Most of them seem to be trying to sell to enterprises or conference organizers.

- I suspect that most of them are ghost towns.

- None of them that I've seen actually try to originate events- i.e. the only way you would use them is if you try to organize an event or are invited to one through a different channel.

- Most of them are top-down, although there are a few 3d ones.

I still think that there's a lot of potential for someone to come in and take over this whole space with a product more polished than is possible in the browser, and with a social element that can drive usage of the platform (similar to Clubhouse). I suspect that the winning team will come from the ranks of game developers, not webdevs who cracked open a webrtc tutorial one weekend. For now though, it's probably best to sit back and let the majority of the 18 existing teams burn through their funding.