Leviathan is a single-player isometric shooter game in which players pilot a spaceship to destroy flying enemies and their defense stations across multiple levels. Set in a sci-fi universe, the game challenges players to complete three levels within a time limit, emphasizing quick reflexes and strategic targeting. It stands out with its isometric perspective, fast-paced arcade gameplay, and the requirement to manage both offensive and defensive maneuvers in a space combat setting, offering a blend of action and casual gameplay elements.