EasySnow allows artists to create highly-realistic snow using a Blueprint system and harnessing Niagara particles. Each snowflake is a 3D model based on real-world snow clumps, which get lit, shaded, and rendered in a realistic manner. With it, you can create heavy snowfalls, stormy blizzards, or light flurries in seconds. EasySnow is intended for rendering with the Movie Render Queue & Pathtracing. It can be used for games if tweaked accordingly (sprites can be used instead of 3D meshes for the particles), but the main focus is on maximum quality. When combined with the Movie Render Queue, EasySnow renders beautiful, falling snow that motion-blurs in a realistic way.
Purchase on the Epic Marketplace here: https://www.unrealengine.com/marketplace/en-US/profile/William+Faucher