Digging into the details, it seems this is largely a fork or adaption of the CryEngine, with all the advantages and disadvantages that brings.<p>As I said about Autodesk&#x27;s offering, Stingray, I think that even a giant like Amazon is going to have an uphill battle bringing a new game engine into mass use. Having been testing game engines just this week, I&#x27;m reminded just how much of an ecosystem has built up around Unity in particular - displacing an engine with that is like displacing Wordpress as the dominant blogging engine.<p>It&#x27;s early days yet but they&#x27;ve got some serious catching up to do. For example, it appears that 3D assets can only currently be created in Max and Maya (no Blender, no Cinema4d), as rather than using FBX or similar as an interchange format they&#x27;re using their own custom formats with an exporter. Most other game engines stopped doing that a while ago, for good reason.<p>Likewise, the level editor is either underdocumented or feature-light. The docs currently just cover creating terrain and vegetation. I assume that the engine has the capability to handle non-outdoor scenes too, but it&#x27;s not explicitly documented anywhere I can find in a quick look.<p>There&#x27;s also no documentation on non-sky lighting, lighting builds, light types, or similar that I can find. There&#x27;s one mention that the engine supports Global Illumination, but no details as to whether it&#x27;s realtime or requires a bake process. Searching for &quot;lighting&quot;, &quot;lights&quot;, or &quot;light&quot; in the documentation returns no results!<p>Interestingly, there&#x27;s a full-featured cinematics system, which means it&#x27;s of considerable interest to me, but that&#x27;s very much a minority thing.<p>I wish them luck and I&#x27;ll certainly be checking it out, having said all that. Another fully open-source 3D engine is no bad thing.