Prison assets low poly models with proper PBR texture. It is very useful for games. I already created a sample scene with proper light mapping.

Create your own Prison environment using this assets package.

The package contains:

Prison cells - (2 type of prefabs- Door open and closed cells),
basket ball area, gym area , security towers and compound walls .

Poly count: Tris 16752
PBR Textures: 56 *1024 ( environment assets)
Terrain Textures : 8 *1024

Every asset included has a prefab set up for you. You can create your own Prison environment using this assets package.