The definitive course on building robust, performant multiplayer networking systems. Written by a working Gameplay Engineer who ships real-time multiplayer titles.

What you’ll master:
• Client-server architecture & authoritative server design
• State replication — snapshots, delta compression, interest management
• Lag compensation, client-side prediction & server reconciliation
• Rollback netcode (GGPO-style) for fighting games & action titles
• Real-time physics sync & deterministic lockstep
• Bandwidth optimization, jitter buffers & packet prioritization
• Anti-cheat validation, input sanitization & server authority
• Matchmaking infrastructure & session management at scale

Who this is for:
Game devs and engine programmers comfortable with C++/C# who want multiplayer systems that hold up under real-world network conditions.

Included: 30+ in-depth lessons with code examples, chapter assessments, private engineer community, and ongoing content updates.