IMVU!

Activeworlds hosts a Universe of over 500 3D virtual reality worlds. In these worlds you can choose from a vast array of avatars that fit your personality (or your perceived personality - that's half the fun!). You can then move about, play online games, shop and make friends with people from all over the planet. You can even stake claim to a piece of land and build your own virtual home, mansion, estate or castle! If you like to travel, there is plenty to explore.

Miitomo is an app from Nintendo that brings out a side of you your friends have never seen before!

Join the worlds largest virtual hangout where you can meet and make friends. Design your own rooms, collect cool furniture, throw parties and so much more! Create your FREE Habbo today!

In Twinity's free 3D world and 3D chat community, you can create your own avatar, party with friends, dress-up, go shopping and interact via 3D chat and animations. Get creative and design your virtual apartment in an authentic real virtual city or create your own island to host parties, flirt and lead an extraordinary life! Join now and discover the possibilities of Twinity's virtual universe.

Open Cobalt Alpha is the first step in a long term project to make available to all people a free and open source platform for constructing, accessing, and sharing virtual workspaces for research and education. This 3D multimedia wiki technology makes it easy to create deeply collaborative and hyperlinked multi-user virtual workspaces, virtual exhibit spaces, and game-based learning and training environments that run on all major software operating systems. By using a peer-based messaging protocol to reduce reliance on server infrastructures for support of basic in world interactions across many participants, Open Cobalt makes it possible for people hyperlink their virtual worlds via 3D portals to form a large distributed network of interconnected collaboration spaces. It also makes it possible for schools and other organizations to freely set up their own networks of public and private 3D virtual workspaces that feature integrated web browsing, voice chat, text chat, and access to remote desktop applications and services. »

Build multiuser 3d scenes using html-like tags and javascript. SceneVR scenes are viewed using a browser-powered viewer (powered by webGL). Chrome, firefox and IE are supported. The server is powered by node.js and runs on Windows, Mac OS and Linux.

Smeet is a virtual 3D World, where you can create your Avatar and your own Room. Start now and meet new friends, flirt, organize your party, share pictures and videos!

vSide is an immersive, interconnected virtual city environment where you can hang out, listen to music, chat, dance, and make friends.

AltspaceVR is a social VR platform for meeting people from around the world, playing interactive games, and attending free live events. Choose from over 28 activities or attend live events with comedians, DJs, authors, celebrities, and more.

Vicarious is a social platform that lets you share and discover stories through an immersive experience accessible in 2D and 3D in virtual reality.