I added an outline as part of the mesh itself (one for the passive variant and one for the evil variant) and also the evil variant changes how the model looks. It may be hard to see though 😅

They have deformations and spikes.

So I need 3 models for each item. Not alive, alive and evil.

Then just import it in Unity (I guess any other engine should work the same) and you can just control it though the skinned mesh component.

You also have access to this property in the code. So you can connect it to any in-game logic, like I did with pickup system.

#unity

You start by making it in Blender.

It's the same mesh but you can set 2 or more states for it by just moving it's vertices around.

And just export it as a regular fbx.

#blender