The visually-stunning Unigine Engine that these days is most commonly used in commercial simulation applications recently published Unigine 2.17 where they have finally made their Vulkan and Direct3D 12 renderers production-ready.
Tellusim as the company known so far for its GravityMark benchmark and being started by Alexander Zapryagaev who was a Unigine Corp co-founder has now launched the Tellusim Core SDK as a new cross-platform, commercial engine.