Explore a comprehensive retrospective of the quality assurance process for the ambitious open-world game Horizon Zero Dawn in this 2018 GDC session. Delve into Guerrilla Games' Ana Barbuta's insights on the victories and challenges faced during testing, covering topics such as test strategy goals, external tools, test automation, team nurturing, and potential downsides. Gain valuable knowledge on developing effective test strategies, leveraging tools and technology, and balancing the complexities of QA in large-scale game development.