Developing a new IP is a challenging process for a company's tools pipeline. Developing a new IP while changing to a new genre is even more challenging. At Guerrilla, we have done just that. With Horizon Zero Dawn, we transitioned from linear tactical first person shooters to a vibrant open world RPG, while completely rebuilding our tools pipeline from scratch. In this session, Dan Sumaili and Sander van der Steen explain how Guerrilla defined and implemented a framework that would provide a robust basis of functionality, on which we built an integrated game development environment. They present a clear picture of how the framework's capabilities took shape over time, by detailing systems they developed and how those systems interact. Redesigning Guerrilla's tools pipeline while in production was a significant risk, which paid off and greatly benefited the final quality of the game.