Neos is a metaverse engine designed primarily for virtual and augmented reality.At its core is a generic synchronization engine – a system using novel approach to network synchronization to make development of multiplayer social experiences and behaviors effortless and a lot more scalable, allowing to build more complex and plentiful experiences.On top of this engine is a set of layers and concepts providing tools and interfaces to build content for VR from within VR and in multiplayer. These concepts try to rethink how design and game development should look like, instead of just trying to port existing approaches from a computer screen into the VR space.