[veddox]

We held our office Christmas party on gather.town. Really neat - a 2D 90s computer game meets Zoom. Haven‘t tried them for productivity yet, but as a social experience they are significantly better than conventional video chats.

[Raphmedia]

We did our office Halloween party on https://topia.io/ which is very similar. You get to build your environment using "flash"-like components.

[telesilla]

We used https://highfidelity.com, 3d audio in a 2d space. Amazingly effective for lots of people to have quiet conversations.