This is a paid asset, but now you can download Cute Background FX for FREE, but please remember this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
Detail this asset from Unity Store: Original Link
Cute Background FX v1.1
Cute Background FX is a collection of ambient background particle systems. Ideal as a background for menus.
The package includes:
– 20 unique prefabs + 20 URP prefabs
– 5 unique ambient designs
– 15 textures
– 2 custom shaders + 2 URP shaders
– total of 59 unique assets
– a demo scene where you can overview them all.
All textures are 512×512 resolution PNG files.
Works with Unity 2020.3.5 and above.
Suitable for mobile applications.
Built-in and URP support.