Unknown Disturbance

As an engineer, you were space driving in space, but all of a sudden, an unknown error caused the spaceship to crash in an unknown planet with a strange building ontop of it. It seems empty and dark. The spaceship is broken, and cannot be started anew. He requires new spaceship components, as the current ones are broken. If humans managed to access this yet unknown planet, that means there must be somehwere components available for use. Unfortunately the only area to find new spaceship components, seems to be in the strange scyscrapper building. No one knows what lurks in here. But there is no choice but to enter and find them, before it is too late.