Hi, I’m Jeremiah Costello — a senior game designer with over two decades of experience designing interactive systems across digital, tabletop, and audio-first games. I currently serve as Senior Game Designer at Tonies, where I design interactive experiences for Toniebox 2, including shipped titles such as Disney Quiz Kingdom and Quizzles. My work focuses on creating accessible, replayable gameplay for family audiences while collaborating with major licensors, including Hasbro, to translate established IP into engaging interactive formats. My role spans concept development, gameplay loop design, prototyping, systems iteration, and structured playtesting. Previously, I led game design on projects such as Rough Justice: ’84, where I developed core systems including dice-based risk mechanics, case-solving gameplay loops, and strategic resource management. Throughout my career I’ve designed and balanced systems across genres ranging from strategy and puzzle-platformers to asymmetrical multiplayer games, often leading cross-disciplinary teams from prototype through release. Alongside my digital work, I actively design and prototype tabletop systems and run long-form RPG campaigns, which I use as live testing environments for mechanics, pacing, and player engagement. I specialize in system design, asymmetrical gameplay, and licensed IP development, and I enjoy building games that balance creative ambition with clear, player-focused mechanics.…Hi, I’m Jeremiah Costello — a senior game designer with over two decades of experience designing interactive systems across digital, tabletop, and audio-first games. I currently serve as Senior Game Designer at Tonies, where I design interactive experiences for Toniebox 2, including shipped titles such as Disney Quiz Kingdom and Quizzles. My work focuses on creating accessible, replayable gameplay for family audiences while collaborating with major licensors, including Hasbro, to translate established IP into engaging interactive formats. My role spans concept development, gameplay loop design, prototyping, systems iteration, and structured playtesting. Previously, I led game design on projects such as Rough Justice: ’84, where I developed core systems including dice-based risk mechanics, case-solving gameplay loops, and strategic resource management. Throughout my career I’ve designed and balanced systems across genres ranging from strategy and puzzle-platformers to asymmetrical multiplayer games, often leading cross-disciplinary teams from prototype through release. Alongside my digital work, I actively design and prototype tabletop systems and run long-form RPG campaigns, which I use as live testing environments for mechanics, pacing, and player engagement. I specialize in system design, asymmetrical gameplay, and licensed IP development, and I enjoy building games that balance creative ambition with clear, player-focused mechanics.WWWW…