Unreal Engine is a complete suite of tools for creating real-time 3D content such as games, architectural/automotive visualization, and simulations. It offers high-end graphical capabilities and supports development across multiple platforms. The free engine can be used for learning, internal projects, and distributing commercial projects without paying Epic Games fees. Popular games made with Unreal Engine demonstrate its capabilities for creating a variety of 3D, 2D, and VR styles.