# 🔌 SimpleTCPServer — Lightweight & Blueprint-Friendly TCP Server Plugin for Unreal Engine
SimpleTCPServer is a lightweight and modular TCP server plugin built for Unreal Engine.
It provides full Blueprint support, session-based communication, multi-channel configuration, and is ideal for server-side use cases requiring reliable TCP communication.
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## ✨ Features
- 🟦 Fully Blueprint-Compatible — All functions are exposed to Blueprints, no C++ required
- 🌐 Multi-Channel Listening — Listen on multiple TCP ports simultaneously with custom settings
- 🔁 Per-Client Session Management — Track connections using session keys (`IP:Port`)
- ⚙️ Centralized Settings Management — Configure static server channels via Project Settings
- 🧵 Multithreaded Accept & Receive — Async background threads for non-blocking IO
- 📦 Clean & Modular Design — Self-contained plugin, easily integrated into any project
- 🚫 Automatic Resource Cleanup — Sessions and sockets are properly closed on disconnect
- 🔄 Runtime Channel Update — Add, update, or restart channels dynamically during gameplay
- 📧 Event-Driven Architecture — Blueprint delegates for message handling and connection state
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## 📦 Typical Use Cases
- Hosting a TCP server in Unreal to receive connections from remote clients
- Working with simulators, custom software, or game clients over LAN
- Handling real-time control, streaming, or command protocols
- Ideal for server-authoritative architectures in multi-device environments
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## 🔧 Recommended Companion Plugins
- 🔌 SimpleTCPClient
Lightweight TCP client plugin for Unreal Engine. Supports auto-reconnect, multi-channel, and Blueprint control.
Perfect for communicating with SimpleTCPServer on the client side.
- 🧩 SimpleByteConverter
Provides native type and struct conversion to/from `TArray<uint8>`.
Useful for defining structured protocols for your TCP messages.
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## 📘 Documentation
```
./Docs/README.md # Main tutorial and Blueprint examples
```
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## 📬 Contact
For support, feature requests, or business inquiries:
📧 mengzhishanghun@outlook.com
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## 🛡️ Notes
- ❌ Domain name resolution is not supported (use raw IP addresses only)
- ❌ IPv6 is not supported