Welcome to the Game Server Protocol Archive — an open collection of reverse-engineered network protocols used by various multiplayer game servers. Whether you're building server browsers, writing custom clients, creating monitoring tools, or simply exploring how games communicate over the network, this repository aims to provide the technical insights you need.
This project documents and collects unofficial specifications of game server protocols. Many games rely on custom or undocumented protocols for server discovery, status queries, and client-server communication. Our goal is to make these protocols understandable, accessible, and reusable for developers, hobbyists, and the preservation community.
Each protocol entry typically includes:
- ✅ Protocol Overview
- 🌐 Default Port(s)
- 🔁 Query / Response Examples
- 🧩 Packet Structures (Hex & JSON)
- ⚙️ Implementation Notes
- 🛠️ Sample Scripts or Tools (when available)
All protocols in this archive have been obtained through legal means, including:
- Packet capture analysis (e.g., Wireshark)
- Public SDKs and documentation
- Community forums and open tools
- In-game behavior observation
We do not distribute proprietary game assets or violate EULAs. This project is for educational and interoperability purposes only.
All information was obtained through:
- Legitimate reverse engineering
- Public network traffic analysis
- Open-source SDKs or community documentation
- Trial-and-error with official clients
We do not distribute game assets, proprietary binaries, or violate any EULAs. This project is for educational and interoperability purposes only.
🎯 Game names, logos, and trademarks are the property of their respective owners and are used here only for identification.
We welcome contributions!
Pull Requests are appreciated for:
- New protocol documentation
- Improvements or corrections
- Sample tools or test scripts
- Additional resources or links
Please ensure that additions are well-structured and ideally supported by packet dumps or references.
Big thanks to the global game reverse engineering and preservation communities for their tireless effort to keep classic multiplayer protocols alive and understood. ❤️
✉️ Feedback, bug reports, or new insights? Feel free to open an issue or PR!