Sansar is described as 'The platform enables user-created 3D spaces where people can create and share interactive social experiences, such as playing games, watching videos, and having conversations in VR' and is an app in the Social & Communications category. There are nine alternatives to Sansar for a variety of platforms, including Windows, Oculus Rift, Mac, HTC Vive and Oculus Experiences. The best alternative is Second Life, which is free. Other great apps like Sansar are VRChat (Free), ActiveWorlds (Free), Facebook Horizon (Free) and AltspaceVR (Freemium).
Second Life is a free 3D virtual world where users can socialize, connect and create using free voice and text chat. To access this world you need to use a viewer such as Second Life Viewer (see Second Life Viewer).
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!).
In Facebook Horizon, not only can you explore the virtual world as it grows and changes, but you can discover all sorts of new things that interest and inspire you. Experience gravity defying, distance spanning, genre bending games of all types.
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.
Discovery Grid is an Opensim-based virtual world. It operates much as Second Life does. Some of it's outstanding features are: Extremely low lag, large land masses available (up to the equiv of 64 SL sims!