As the alien world exploded into a splendid sphere of debris and a glorious ring of flaming wreckage, Wright elaborated one of the central points of his game design. "I want players to be able to do this without ruining the game for each other," he explained. You get to share content with other players, and interact with it in godlike ways, but nobody can spoil one another's fun.
Speaking of sharing content, we learned more about how people will get to interact with each other's stuff. Whenever you create something, assuming you're connected to the 'net, it'll be uploaded for the world to enjoy. But it doesn't just disappear. You'll be able to track how your creations are faring around the universe. You'll get regular "Multiverse Reports" that tell you how many people met your species and how they reacted. Is everyone killing your creatures on sight? Are they using the different buildings you've created? You'll get to see!
