Explore the challenges and solutions of building multiplayer games in this 55-minute conference talk from Devoxx Poland 2019. Dive into the world of real-time game development, comparing HTTP and WebSocket protocols, and discover how RSocket can simplify the process of creating networked applications. Learn to build a multiplayer Pac-Man game while examining various communication models, back-end and front-end considerations, and protocol choices. Gain insights into JVM setup, interaction modes, and Spring Messaging integration, ultimately understanding the advantages and potential drawbacks of using RSocket for multiplayer game development.