multiplayer

Multiplayer server architecture selection depends on your game type and requirements, involving trade-offs between dedicated servers, P2P, and host-based models. Dedicated servers offer better server authority, while P2P reduces infrastructure costs for smaller sessions.

State synchronization transmits the actual game object data to maintain consistency, whereas input synchronization only sends player actions and simulates results locally. Input synchronization requires less bandwidth but needs deterministic simulation to prevent desync in real-time games.

Lag compensation techniques mitigate latency by predicting player movement, interpolating object positions, or rewinding server state to validate hits. These strategies ensure fair gameplay and responsive controls despite network delays in data transmission.

Network optimization reduces bandwidth by adjusting update rates, compressing packets, and prioritizing critical state data. Implementing interest management to send updates only to relevant clients drastically decreases traffic in large-scale gaming environments.

Multiplayer security prevents exploits by enforcing server authority, meaning the server validates all client actions and state changes. Never trust client input directly; implement server-side validation checks to detect impossible movements or unauthorized modifications.

Real-time strategy games typically require a dedicated server or authoritative host model to maintain strict state synchronization and prevent exploits. Host-based networking can work but introduces security vulnerabilities and fairness issues if the host manipulates game data.