CRYENGINE
A real-time game development platform
...Fully realtime dynamic global illumination with a fully PBR workflow allows you to create ultra realistic environments using the tools you're used to. Physical simulations that take into account real world physical properties in a realistic manner to provide easily configurable and dynamic scenes. Use CRYENGINE's exclusive Audio Translation Layer that allows you to choose the middleware you want, when you want. Allowing for workflows that work for you.