A game design toolkit is a collection of tools and resources that assist game developers in creating video games. These toolkits often include software for designing graphics, programming, and sound, as well as templates and assets that can be used to streamline the development process. Popular examples of game design toolkits include Unity, Unreal Engine, and GameMaker Studio. These toolkits cater to various skill levels, from beginners to experienced developers. They provide features like drag-and-drop interfaces, scripting languages, and asset libraries, making it easier for creators to bring their ideas to life. By using a game design toolkit, developers can focus more on creativity and gameplay rather than technical challenges.