NFL GameDay 2005 is a single-player and multiplayer sports simulation game in which players can control NFL teams and players to compete in American football matches, utilizing realistic gameplay mechanics and strategic playcalling. In this game, the setting is the National Football League, featuring real teams and players, with a focus on authentic gameplay experience on the PlayStation console. It stands out with its detailed player models, realistic physics, and comprehensive game modes that emphasize strategic depth and player control, offering an immersive football simulation tailored for fans of the sport.