RIG2U5 is an addon that extends Blender's Rigify system to create game-optimized skeletons for Unreal Engine 5. It provides a non-destructive rigging workflow, allowing users to generate metarigs with U5, A, T, or X pose templates alongside full facial and body rig support.

The tool handles the export of FBX files, formatting them specifically for compatibility with Unreal's IK Rig, IK Retargeter, and Modular Control Rig systems. It preserves standard Rigify features like IK/FK switching and stretchy limbs, and includes simplified weight binding tools as well as the ability to append extra bones for props or hair.