Gun-Dog is a sci-fi adventure game inspired by the PC-98 era, featuring pixel art and nostalgic design elements such as chunky save points and CRT-style monitors. The gameplay includes basic verb commands and a limited inventory, reminiscent of classic gaming experiences. The narrative follows a rookie security officer on a chaotic mission aboard a ship with diverse characters, where player choices influence the story. The game combines retro aesthetics with modern gameplay, offering an engaging experience that honors the depth and quality of past adventures while remaining accessible to new players.