If the mechanism lacks a part, it will never work and it can be both a large and a very small part. It produces energy and provides the inhabitants with light and heat. If he stops for a long time, it can be a disaster. The hero goes to the basement to check all the systems and install new power supplies. Spend it through the maze and push objects into special niches. The further, the more difficult it will be to do, but the mission must be completed.
