Small Cluster Exploration event this weekend, going around worlds, checking whatever event is active at the time and messing around with ingame world building tools. There are some cool worlds to see recently.

>What's Cluster?
Japanese social VR platform, mix of VRC, Altspace and RecRoom. Supports VRM avatars, FBT and building of simple worlds directly in game. Their world SDK is open source and there's plenty of documentation (Google Translate needed). Expect Engrish in menus.

>How to join?
Just register account at https://cluster.mu, verify your mail and upload any standard VRM avatar. Fastest way to register is using Gmail or Twitter login. You can easily convert your VRC avatar with UniVRM tools, instructions here https://clusterhelp.zendesk.com/hc/en-us/categories/4411636965529-Create-an-avatar and then just wait for event link to be posted. If you're lazy you can use built-in avatar maker to create generic anime girl or boy.

>Will it run on my Google Cardboard with Wii Motes and 4 Kinects?
No but it runs on anything supporting SteamVR, standalone Quest, desktop and even phones but good luck joining most worlds on phone or Quest, there's no restrictions on shaders and world creators couldn't care less about phonelets (still usable for just chatting).

>When?
Preliminary date is this Saturday, time undecided but probably 7-8PM GMT.

Non-JP population is small but game itself has plenty of players and they're more than happy to show everyone around, there's persistent world chatbox so machine translation fueled discussion isn't uncommon.

You can also headpat people on desktop!