DICE/EA's proprietary Frostbite 2 engine is an attempt to redefine the first person shooter. Featuring state of the art features like real-time radiosity, the quality of the visuals are hard to match.
The company has no plans to license out the engine to any developers, and rendering architect Johan Andersson stated publicly on Twitter that their focus is to develop great games rather than sell technology.
A presentation of the engine by Per Einarsson from DICE and Sam Martin from Geomarics can be seen below. The presentation itself focuses on the implementation and use of Enlighten, a middleware toolkit for computing real-time radiosity from Geomarics, and demonstrates how the workflow, content pipelines and run-time systems are greatly increased for use in videogames.