A Game Maker developer utilizes the Game Maker Studio engine to design, develop, and test video games. They write scripts and codes, create characters, environments, gameplay mechanics, and storylines. They also manage the game's graphics, audio, and other multimedia elements. Additionally, they debug and solve game-related issues, optimize the game for different platforms, and update it post-launch. They work collaboratively with designers, artists, and other developers, ensuring the game aligns with the initial concept and meets quality standards. Their work involves creativity, problem-solving skills, programming knowledge, and a deep understanding of the game development process.