LESSON & PROJECT FILES: https://www.sidefx.com/tutorials/magic-projectile-fx-for-unity/
Add an explosion of particles in Unity at the point where the projectile dies. To control the particles, use a vector field created in Houdini. To export it to Unity, access the VFXToolbox from Unity’s github which will supply the exporter node. You will also create a particle trail for the projectile as it moves.