DEFCON 5 for Sega Saturn is a first-person sci-fi action-adventure game with strategy and simulation elements. Set in a futuristic space setting, players must defend a space station from enemy attack while managing resources and fortifying defenses. As the lowest state of alert in the DEFCON series, DEFCON 5 indicates normal peacetime readiness, but the game quickly ramps up the tension. Players navigate through the facility, engaging in combat, hacking systems, and solving puzzles to prevent the station's destruction. The title blends immersive storytelling with strategic gameplay, appealing to fans of the genre.