OpenSimulator is an open-source server platform for hosting virtual worlds and the Metaverse. It is largely compatible with the virtual world Second Life but compatibility is not a design goal.
Cost / License
- Free
- Open Source
Platforms
- Windows
- Linux

Second Life is described as 'Dive into a 3D virtual world featuring user-generated content, customizable avatars, and a thriving economy, ideal for socializing and exploring diverse communities' and is a simulation games in the games category. There are more than 25 games similar to Second Life for a variety of platforms, including Windows, Android, Mac, iPhone and Linux apps. The best Second Life alternative is OpenSimulator, which is both free and Open Source. Other Second Life like games are VRChat, Overte, Avakin Life and Resonite.
OpenSimulator is an open-source server platform for hosting virtual worlds and the Metaverse. It is largely compatible with the virtual world Second Life but compatibility is not a design goal.

Join our growing community as you explore, play, and help craft the future of social VR. Create worlds and custom avatars. Welcome to VRChat.




Overte is an open-source 3D client and server solution that allows for vast social & educational environments to be created and lived in while also being shared in real-time with others.



Imagine a virtual world where you, the user, are an integral part of its evolution, where you can meet and interact with countless.. individuals who share similar interests as you. Imagine a virtual world you can access wherever you are. Avakin Life




Resonite is a free collaborative social VR & desktop sandbox platform, where users can socialize in a virtual environment and create objects, avatars & worlds together.




Rec Room is the best place to build and play games together. Chat, hang out, explore MILLIONS of rooms, or build something new to share with us all! Join the club!.



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.


The main goal is to provide a secure and performant base game for creators and players around the world.




IMVU is a 3D based social network using avatars, with user created rooms and high levels of avatar and room customisation. (Room creation requires the PC or Mac client).



the fashion virtual world, and join millions of fashionistas (and fashionistos) personalizing and expressing styles with new weekly clothes, build your character’s story.




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!
Kitely is an enhanced OpenSim metaverse of virtual worlds. Graphically superior, and the world you create is portable and can be backed up locally to your machine!.
Basically, OpenSimulator is the free, open-source, reverse-engineered version of the Second Life® engine, which you access with the same viewer. As a consequence, you can see exactly the same kind of content — but running from your own server at home, if you wish, for zero hosting costs.