Creation Engine is an in-house engine created by Bethesda Game Studios. After using Gamebryo to create The Elder Scrolls III: Morrowind, The Elder Scrolls IV: Oblivion, and Fallout 3, Bethesda decided that Gamebryo's graphics were becoming too outdated and began work on Creation Engine for their next game, The Elder Scrolls V: Skyrim. The engine is based on Gamebryo and still has code from it inside Creation Engine. The Last-Gen Creation Engine offers basic real time shadows and more detail to distant objects. However the Next-Gen version of Creation Engine, that is powering Bethesda's newly announced Fallout 4, offers Physically Based Rendering, Dynamic Volumetric Lighting, the ability to build your own structures in-game, advanced character creation, etc.