Jonathan Tweet is an American game designer known for his work in the tabletop role-playing game industry. He is best recognized for co-creating the popular game Dungeons & Dragons (D&D) 3rd Edition, which significantly influenced modern role-playing games. His contributions have helped shape the way players engage in storytelling and character development in gaming. In addition to his work on D&D, Tweet has designed other games, including Everway and The Everway Roleplaying Game. He has also been involved in the development of various game mechanics and systems that enhance gameplay experiences. His innovative ideas continue to inspire both new and veteran game designers.