The Ultimate Multiplayer Audio Experience.

A fully replicated Radio Station + Disc Music System, built 100% in Blueprints and designed for seamless multiplayer integration. Create dynamic in-world radio stations, collectible music discs, and immersive player-controlled soundscapes with performance, stability, and flexibility at the core.

🎥 YouTube Trailer: Watch
🎮 Demo: Download
📘 Installation & Reference Guide: View

🧾 Release Notes: 1.4

🧩 Latest Update — Version 1.4

Update 1.4 focuses on multiplayer stability, UI fixes, and core system optimization.

• Improved multiplayer synchronization for smoother and more consistent audio playback across all clients
• Expanded use of centralized event handling within the BP_MusicPlayer to reduce redundant server calls and improve performance
• Fixed a critical demo UI issue where clients could spawn duplicate widgets or lose input control when pressing Escape
• Removed redundant server authority checks for local-only actions (e.g., muting), improving responsiveness

This update improves overall system reliability, reduces unnecessary network overhead, and further strengthens the system’s multiplayer stability.

Overview

Bring your world to life with the BR MusicSystem, the definitive Blueprint framework for in-game interactive audio. From cozy social hubs and farming sims to survival games and sprawling RPGs, this system adds depth and atmosphere with synchronized music that just works in multiplayer.

• Server-Authoritative & Optimized – State changes replicate via RepNotify, ensuring smooth playback while minimizing bandwidth usage
• Dynamic Radio Stations – Unlimited, globally synced stations with weighted playlists and configurable Audio Inserts (DJ drops, ads, jingles)
• Collectible Disc System – Persistent player collections with save/load support, disc pickups, and configurable disc tray capacities (single-disc players to multi-disc changers)
• Vehicle Stereo Support – Drop-in vehicle stereo actor with configurable interaction and interior listening bounds for driver-only, passenger, or full-cabin control
• Access & Lockout Logic – Multiplayer access control with optional locks, idle timeouts, and fair-use rules to prevent griefing
• Add a Few Core Pieces – A small set of managers and components handle all radio, disc, interaction, and saving logic. Once added, you’re ready to configure and play
• Customizable UI (Event-Driven, No Tick) – Two-line dynamic displays with marquee scrolling, customizable UMG widgets, and fire-and-forget notifications
• Blueprint-Only & Extensible – Cleanly commented Blueprints designed for easy extension with custom content, new stations, or additional device types
• Cross-Platform Ready – Fully Blueprint-based and tested on Windows and Mac for plug-and-play use across Unreal-supported platforms

Technical Details

Network Replicated: Yes

Architecture: Server-authoritative, event-driven (no Event Tick for game logic)

Engine Versions: Unreal Engine 5.5 – 5.8

Number of Blueprints (Total): 22 (Including 2 SaveGames, 1 Interfaces, 1 Data Asset template)

Core Actors & Components (User-Placed / Added):

• Managers: BP_RadioManager, BP_DiscManager

• PlayerState Component: AC_BR_DiscInventory

• PlayerController Components: AC_BR_PlayerInteraction, AC_BR_DiscSaveManager

Number of Widgets: 8

Input: Enhanced Input (Keyboard, Mouse, Gamepad/Controller ready)

Dependencies: None — fully self-contained

Supported Platforms:

• Officially Tested: Windows, Mac

• Expected Support: All Unreal-supported platforms (Linux, Consoles)

Documentation

Includes a comprehensive guide covering quick-start setup, advanced integration, disc/radio station customization, and full Blueprint references. Designed for all skill levels, from beginners to advanced Unreal developers.

Included Demo Music

Includes a set of original and CC0 (public domain) sample tracks for demonstration purposes.

You are free to:

• Use them in your projects with no attribution required

• Modify, edit, or replace them as needed

All included audio is:

• Fully safe for commercial use

• Free of AI-generated content

• Provided under original or CC0 licensing

Summary

Whether you’re building a casual multiplayer hangout or a deep RPG, the BR MusicSystem delivers immersive, dynamic, and player-controlled audio with the polish and robustness you’d expect from a marketplace-ready asset.

This system represents hundreds of hours of development, testing, and documentation, giving you a reliable multiplayer audio framework that would take weeks (or months) to build on your own.

⚡ Optimized, flexible, and fully multiplayer-ready.

Support

For installation help, troubleshooting, or questions, please contact:
📧 [email protected]