In this clip from the 1998 Alex Proyes film Dark City, I have completely replaced the soundtrack with original sound designs. I wanted to avoid using library sources so I started by recording as much as I could myself.
For the footsteps and foley, I built a small platform using wooden pallets and scrap lumber. The rope strain sounds came from a number of different types of ropes, combined with a wicker basket that I twisted and pulled apart. All of the vocal sounds started from my voice and I used the FL Studio vocoder to impart some different texture layers to the Strangers. Although I was able to record some actual sparks with the help of my father, most of the electrical elements at the end came from an experiment with a contact mic taped to a wooden dresser with a thin chain dragged over it. The brain creature was a combination of a squeaky keychain, synthesized elements, mouth noises, and a layer of cooked pasta for the extra squishiness.