Metro tunnel concrete Game-ready Low-poly 3D model

Lowpoly model metro tunnel. The model have 3 skins.
2 materials.
All textures 4k 8bit tga.
Texel density - 5/cm.
RGB - R/M/A - Roughness/Metall/AO
No collision.

There are 2 versions of the tunnel. In 01 there is a shell on the inside, so that in the gaps between the slabs you can't see the surroundings. There is version 02, where there is no frame. This is the kind of mesh I recommend using if your skybox is black, so it doesn't cause unnecessary gaps between the concrete slabs. Made by snap to grid 100
The model implies that it will not be visible from the outside, only from the inside.
This model has only concrete. I can do the rails, sleepers and other equipment later if needed. But until then, you can use your content so you can frame it in the tunnel. Made almost to real dimensions with a cross section of the tunnel of 5.5 meters.
This type of tunnel was built in the USSR, you can see it all over the former Soviet Union.
If necessary, I can custom make any tunnel in full equipment in higher quality than it is now.