Previously, I covered "The Heretic: Digital Human" free package for Unity, a package featuring an extremely realistic human character from "The Heretic" short film. Unity has also released Morgan, the VFX demon-like character from the same short film. You can get Morgan from the Asset Store.
The package is composed of a character mesh and a lot of particle effects created with the Unity VFX Graph. The character body can morph between a man and a woman, and it also has a helmet that morphs into different shapes.
There are 18 VFX Graph assets in total, and they are used depending on Morgan's state. For example, calm, angry, fire (and they are separate for body and head, and sometimes even for eyes). These VFX Graphs are very big and complex, but they can be a very good learning resource if you are familiar with that Unity module.
While the project is very complex and can take a while to figure out, I see this package can be more useful to Unity users than the Digital Human package (if you see my coverage of that package, you will know why), because this is something that can actually be reproduced with the tools users (working on higher-end games) will have at their disposal. Technically you only need Unity, a painting software and a 3D application for this, and everything else is done directly within Unity. Those working on high-end games or simulations in Unity who want to learn more about VFX Graph (or even implement something like Morgan in their projects) should take a look at this package.
The Heretic Morgan (VFX Character) package: https://blogs.unity3d.com/2020/05/20/the-heretic-vfx-character-out-now/