This is a paid asset, but now you can download HerdSim Cat 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
HerdSim Cat v1.4.3
HerdSim Cat is a simple and easy to use animal roaming simulator. Simply drag the prefab to the stage and it will move within the roaming area.
Instead of RigidBodies this system uses rays to avoid and push away from obstacles. This gives better performance and allows for a lot more animals.
Features
• 1086 tris animated cat model
• 2048x2048px texture resolution
• Drag & Drop roaming animal system
• No rigidbodies used – very CPU friendly
• Simple UV map, easy to change texture
• Easily use custom models (legacy animations)
• Works very well on mobile
• Includes mobile prefabs and materials
Compatible with Unity 5.1 up to new versions of Unity(2019+)
Support available for assistance if any problems should occur.