Killer Machines

Deep underground, in a military lab, an experiment was underway. A combat robot, code named Arachna-Mech, was made, though everyone simply called it the Spider. As its nick-name implied, its appearance was like that of a giant spider. It was able to power itself using ambient energy. However, it quickly went out of control and began sucking energy at an accelerated rate. As it did so, office plants in the facility began to die and a colony of roaches that they had so far failed to exterminate suddenly died off with no obvious reason, people working in the vicinity of the Spider also began to feel fatigued. The first sign that this was more than a normal tired day was when a wide-awake, healthy technician working near it suddenly collapsed to the floor. The other technicians rushed to aid him, but as they in turn approached the Spider, they too began to feel weak and exhausted.

You are that tech, you awake in the infirmary. You are the only person left alive inside the base. Everyone else has either died or fled. You have to dodge the mechanical spiders, solve puzzles, find your way from floor to floor through the mazes, and escape the base alive.