I gave my assets to my wife—she’s an experienced 3D modeler and sells assets on the Unity Asset Store and Unreal Marketplace. She fixed a few things, cleaned up the files, and created proper Unity and Unreal packages to make things easier for people using those engines :)

I’m still including the separate FBX, GLTF, and OBJ files as before. The new update is added as a zip file called Update2, and it contains both the Unity and Unreal packages.