PT-109 is a single-player strategy game in which players control a naval vessel, engaging in combat scenarios that require tactical decision-making and resource management. In this game, the setting is centered around naval battles, emphasizing the importance of positioning, timing, and strategic planning to outmaneuver opponents. It stands out with its pioneering use of microprocessor technology, making it one of the first arcade games to incorporate this advanced hardware, which enhanced gameplay complexity and responsiveness.