The USG Ishimura is a fictional spaceship from the video game series Dead Space. It is a massive mining vessel designed for deep-space resource extraction, primarily focused on harvesting valuable minerals from planets. The ship is equipped with advanced technology and facilities to support its crew during long missions. In the game's storyline, the Ishimura becomes the site of a horrific outbreak after the crew discovers an alien artifact known as the Marker. This leads to the transformation of crew members into monstrous creatures called Necromorphs, setting the stage for the game's survival horror experience.