Overview

Full-Stack Game Development with Kotlin: Building Scalable Backends for Mobile Games using Ktor Mobile players expect more than fun mechanics-they demand seamless online features like multiplayer battles, leaderboards, cloud saves, and real-time updates. Yet many developers struggle to move beyond the client side, juggling multiple languages and frameworks to build reliable backends. What if you could create both the game client and the backend in one language, with tools built for performance and scalability? This book shows you how to do exactly that. Full-Stack Game Development with Kotlin is a practical guide to building secure, scalable backends for modern mobile games using Kotlin and Ktor. Designed for game developers and backend engineers alike, it teaches you how to design, implement, and deploy multiplayer-ready systems that handle everything from authentication and matchmaking to real-time state synchronization. By the end, you'll know how to create production-ready services that scale with your players. What sets this book apart is its step-by-step structure and real-world focus. You'll begin with environment setup and project structure before moving into Ktor fundamentals like routing, requests, and middleware. From there, you'll build RESTful APIs for player profiles, integrate WebSockets for real-time gameplay, and implement JWT authentication for secure sessions. Database integration with PostgreSQL and Redis shows you how to persist progress and deliver lightning-fast leaderboards. Later chapters cover advanced features such as matchmaking strategies, microservices, Docker/Kubernetes deployment, and CI/CD pipelines. A complete case study ties it all together, demonstrating how to design, implement, and scale a real multiplayer mobile game backend. This book isn't just theory-it's packed with code illustrations, deployment templates, and actionable best practices drawn from real-world experience. You'll learn how to: Build and secure APIs tailored for game clients. Manage multiplayer sessions with WebSockets. Design scalable data models and caching strategies. Deploy and scale backends on AWS, GCP, or Azure. Test and optimize your backend for performance under real-world load. Whether you're a Kotlin developer looking to expand into backend development, a mobile game programmer who wants to scale beyond single-player, or a backend engineer curious about the unique challenges of games, this book will equip you with the skills to deliver. Take your game development beyond the client side. Build backends that scale, perform, and keep players engaged. Get your copy today and start building the next generation of multiplayer mobile games with Kotlin and Ktor.

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