Vircadia [https://vircadia.com/] [https://github.com/vircadia/vircadia] Vircadia™ is a 3D social software project seeking to incrementally bring about a truly free and open metaverse. - Desktop and VR use - Hundreds of users simultaneously - Full-body avatars - FBX, glTF, and OBJ support - JavaScript scripting engine - 16km³ world space in a server - Fully self-hosted - Apache 2.0