RayFire for Unity. Shatter component. Beta.
First beta preview shows how to use RayFire Shatter component. It's main purpose is Prefragmentation in Editor mode. For now it provides 5 fragmentation types: Voronoi, Wood splinters, Slabs, Radial fragmentation and Tetrahedron based fragmentation (but this one is too advanced for games, at least for now)
Website: http://RayFireStudios.com