Mir Vadim has released Rayfire for Unity, a powerful destruction kit plugin.
The Unity version allows you to break down 3D objects at runtime and pre-shatter items in Edit mode. Similar to the Max version, it includes fragmentation types such as regular voronoi, wood splinters, slabs, radial, slicing using planes, and tetrahedral.
Using Clustering, you can simulate and break them as complex concave shapes. RayFire also offers Advanced Dynamic Simulation Control over simulated objects and demolished fragments, such as activating them at a specific time. It also allows users to shoot, explode and affect fragments with wind and vortex forces.”