Get it on Turbosquid Here
Deer rigged and animated in Blender. Animations are available in Blender, fbx and Unreal Engine 4 formats. UE4 version has basic runaway and random animation AI setup. It also has a Third Person version so you can play with it as a character if you wish.
The UE4 version has 7,602 polys with and an LOD with 1,902 polys. You can choose to just use the LOD version if you like.
Included versions of Unreal Engine are 4.15 and 4.16.