Microcosm for the Sega CD is a sci-fi themed rail shooter game released in 1993. Set within the futuristic landscape of a human body, players navigate a microscopic craft through a series of 3D tunnels and environments, representing the interior of a living organism under attack by a malevolent virus. Employing the Sega CD's enhanced graphical capabilities, the game showcases pre-rendered video backgrounds overlaid with interactive sprite-based enemies, offering an immersive and action-packed experience that was innovative for its time. The player's goal is to eliminate threats and restore health to the afflicted host.