IndyCar Series 2005 for Microsoft Xbox is a high-octane motorsport racing simulator that brings the intensity and precision of the Indy Racing League to video game enthusiasts. As part of the racing genre, it features a detailed career mode, challenging players to master the art of open-wheel racing. With authentic tracks, cars, and drivers from the 2004 season, players can compete in the full IndyCar Series, including the prestigious Indianapolis 500. The game offers multiple difficulty settings and multiplayer options, allowing racers to enjoy head-to-head competition with friends.