Marsh Pirates are species of plant infested pirates from the planet Ico. They can live up to 1,000 years old, and slowly turn into plants overtime. They start off as a regular human, but begin the transformation after 300+ years. They were created by Sunken Sword PCGs for his first PCG called Sunken Grave. In this game they wielded basic spears, and spoke in gibberish. Their main goal was to protect The Shadow Captain.