I know that with Unity free you cant have realtime shadows but the lighting that I get from the directional light makes my objects in my game look wrong as what the picture shows, how do I change this so that it looks more realistic?
Make sure all your normals are importing properly. That looks like a typical normals problem- it’s treating your walls as if they were very blocky spheres!
Sorry, the image doesn’t work.
You might want to try baking the lighting.
Alternatively, you can use just ONE mesh, stretch it out, and use X TILING for the texture. This will save madly in terms of polygon count, too, and make the scene run faster in the end.