You set out for what should have been the greatest marathon of your life, but a sudden sandstorm leaves you stranded in a boundless desert beneath two strange moons. With no help coming, you must rely on your instincts to survive blistering days and freezing nights. Scavenge scarce water, hunt for food, fashion weapons and tools, and build a refuge to protect yourself from relentless heat, deadly cold, and nightmarish desert creatures.