Use Unity's Entity Component System or basic Rigidbodies to add features like cloth physics or hair movement.
Look for .fbx , .obj , or .pmx files. These are your base geometries.
Look for .json , .xml , or .unitypackage files if the archive is meant for a specific engine. 2. Set Up the Environment
What do you want to add (e.g., a new outfit, a gameplay mechanic, or a visual upgrade)?