Sansar is a virtual reality (VR) platform that allows users to create, share, and explore virtual experiences. It was developed by Linden Lab, the same company that created Second Life. Sansar is designed to be a more accessible and user-friendly platform than Second Life, with a focus on ease of use and a more streamlined user experience.

Here are some key features of Sansar:

1. Virtual Reality: Sansar is built for VR, allowing users to immerse themselves in virtual experiences with a high level of presence and interactivity.

2. User-Generated Content: Users can create their own virtual experiences using a drag-and-drop interface, without needing to know how to code.

3. Social Features: Sansar has social features like friends, groups, and events, making it easy to connect with others and share experiences.

4. In-World Building: Users can build and edit their own virtual environments, using a variety of tools and assets.

5. Cross-Platform: Sansar supports a variety of platforms, including PC, Mac, and VR headsets like Oculus and Vive.

6. Experiences: Sansar has a wide range of experiences, including games, social hangouts, events, and educational content.

7. Monetization: Creators can monetize their experiences through sales, subscriptions, and advertising.

Sansar has many use cases, including:

1. Socializing: Hang out with friends, attend events, and connect with others in virtual social spaces.

2. Gaming: Play interactive games and puzzles, or create your own games using Sansar's tools.

3. Education: Explore virtual labs, attend virtual classes, and engage in interactive learning experiences.

4. Art and Design: Create and share virtual art, sculptures, and installations, or attend virtual art exhibitions.

5. Entertainment: Attend virtual concerts, movies, and other events, or create your own entertainment experiences.

Overall, Sansar is a platform that allows users to create, share, and explore virtual experiences in a highly immersive and interactive environment.