http://www.tomshardware.com/news/imp...gdc,33756.html

Improbable announced at GDC 2017 that SpatialOS, a platform that makes it easier to build massive game worlds, will be available as an open beta starting March 2. The company also said that SpatialOS will soon integrate with the Unreal Engine--it's currently limited to Unity--and revealed the first game development companies given subsidized access to the platform by Google Cloud as part of the new SpatialOS Games Innovation Program.
SpatialOS is all about game worlds. It allows developers to store information across multiple servers and game engines; to use various micro-services at the same time; and to support "a huge number of concurrent players across different devices" in one world. The platform keeps track of all this data and makes it available to all players. The desired result: massive game worlds that respond to player actions instead of feeling like static backgrounds.
Improbable's SpatialOS distributes the workload across hundreds, and even thousands, of cloud servers. The result is that everyone exists within the same world. MetaWorld doesn?t rely on instances or zones to limit the number of players connected to any given server. The entirety of MetaWorld exists on the same cluster of servers, which means you?ll never encounter a loading screen as you traverse the expansive world?and expansive it is.

HelloVR said that MetaWorld's entire map covers nearly 10,000 square miles of traversable space. 'There are no loading tricks or fake backdrops,' said Herman Narula, Founder and CEO, Improbable. 'If you can see it, you can travel to it - step by step if you want to.'