Sackboys are fictional characters from the video game series LittleBigPlanet, developed by Media Molecule. They are small, customizable avatars made of fabric, resembling sacks, and are known for their playful and creative nature. Players can design their own Sackboy by choosing different costumes, accessories, and features, allowing for a unique gaming experience. In the LittleBigPlanet games, Sackboys navigate various levels filled with puzzles and challenges. The gameplay emphasizes creativity, as players can create their own levels and share them with others. The series promotes collaboration and imagination, making Sackboys beloved characters in the gaming community.