The game development industry employs customized tools which support liveness to enable fast iteration. These tools are used in sophisticated software development settings and can serve as inspi- ration for future directions of the field of live programming. At the same time, game development is a specialized field different from general application development. To provide starting points for exploring work on game development tools, we provide general ob- servations and an overview over ten use cases for tools based on an exploratory literature study on articles published on Gamasutra and videos of the Game Developers Conference. Further, we illustrate how liveness is used in these use cases through example tools and environments. We discuss the examples with regard to the liveness levels according to Tanimoto. Finally, we discuss how insights from these specialized tools can be transferred to tool development for general software development.