Me and a couple of friends having been working on similar ideas for the past few weeks!

https://gather.town & https://theonline.town

There are a lot of people exploring this idea recently, you might be interested in trying them:

- https://cozyroom.xyz

- https://www.calla.chat/

- https://party.mookerj.ee/

- Phillip Rosedale (Second Life)'s High Fidelity