Shader with flat hard shadows

I’m trying to figure out how to make a shader where the shadows cast by the object are simple, flat shadows that simply make a black or darkened surface. A visual example would be like in this Killer7 screen shot

See how the shadow is from the wheel chair? How it just simply goes black? That’s what I’m trying to achieve.

If you didn’t know already, you could always adjust this through the Lighting settings.

In the Lighting Tab, under “General GI”, change “Indirect Intensity” to 0.
If you don’t want any tinted shadows from the skybox, under “Environment Lighting” change “Reflection Intensity” to 0.

Screenshot for clarity:

You can add point lights to your scene, for areas where you don’t want completely dark shadows.