To become a Space creator you need to;
1. Register at http://sine.space/
2. Log in to the creator portal; https://curator.sine.space/
3. Download and install the Unity3D game engine; https://unity3d.com/get-unity/download
4. Download and import the Space Editor Pack; https://curator.sine.space/editor_pack
The Space virtual world has a live server; http://sine.space/
This is where the Space community comes together. The live server has a real economy and is widely promoted to new users.
Space also has a preview server, where creator content can be reviewed before pushing to the live servers; http://creator.sine.space/
The creator portal allows creators to buy regions in Space and to manage their income from the sale of virtual goods; https://curator.sine.space/
Creators can use the Unity3D game engine to upload their work; regions, clothing, gestures and numerous other types of virtual goods. https://unity3d.com/get-unity/download
Unity is a powerful game engine that allows creators to build regions and virtual goods to the same quality standard as contemporary AAA game titles.
The Space Editor Pack must be imported into Unity3D. https://curator.sine.space/editor_pack
This will link the Unity project on the creator's desktop to their Space account. And it provides a wide range of tools to enable creators to build, productise and publish, share and sell their work.