Mars: Chaos Menace is a hardcore top-down arcade shooter in a sci-fi setting. The game takes place in the era of terraforming, after saving our native Earth, which was destroyed by radioactive contamination and resource depletion. Now humanity is successfully colonizing nearby planets, using technologies that help adapt to harsh and hostile places. For the first time in their lives, people feel in harmony with everything around them. But their activity and development attracted huge monsters that devastated all the planets in their path. Humanity has forgotten that chaos is the natural state of the Universe.