Unsurprisingly, working in SpatialOS will require special skills. Games can still be built with the Unity engine, though they'll also need to be able to work with Scala, the native SpatialOS language. However, Narula said the World's Adrift team needed "very little" training. From there, it's simply "pushed" out onto Improbable's infrastructure, and congratulations, you're a maker of worlds.

Cost Structure:

Narula wouldn't reveal pricing, but you only pay for usage – if no one is in your world, there's no cost – and he suggested Bossa's ability to build Worlds Adrift shows it's affordable.

If I'm understanding this correctly, it's more that they're building large, persistent "environments" that can easily integrate with existing development and modeling software. Virtual sandboxes for playing and testing.

Anyone have enough info to provide clarification?