Entropy

It is 2323, and humanity's greatest accomplishment, the massive near-Earth Fulcrum space station, has been infested with a mysterious fungus. This gives rise to monsters, infected humans and an unforeseen rot in the minds of the higher-ups. Explore the halls of Fulcrum and the deserts of Mars in this retro-style, fast-paced and relentless top-down shooter. Collect and upgrade dozens of different weapons, build tools to help you survive, upgrade your weapons and character to the max and eradicate hordes of monsters. Get through the dozens of levels of the challenging single-player campaign or test your skills in pure combat in the Challenge Mode, earning higher ranks in increasingly difficult combat challenges.