Explore the practice of Chaos Engineering through GameDays in this conference talk from GOTO Berlin 2018. Discover how intentionally creating failure scenarios in a safe environment can test service resiliency, validate technical intricacies, and improve incident management. Learn about the structure of GameDays, experiment formulation, and the importance of observability. Gain insights into starting small, scaling challenges, and leveraging the right tools for effective Chaos Engineering. Understand how regular practice can benefit enterprise companies, improve user experience, and enhance infrastructure resilience. Delve into the analogy between Chaos Engineering and sports training, and explore the objectives and benefits of this proactive approach to system reliability.