Unreal Engine

Integrate the MusterBox SDK with Unreal Engine 5.3/5.4.

The Unreal adapter ships as a plugin named MusterBox (plugin package musterbox-unreal, min Engine version 5.3; validated against 5.4).

Install

Extract the plugin into your project’s Plugins directory and enable it:

# dist/unreal/musterbox-unreal-1.0.0.zip
#   -> <Project>/Plugins/MusterBox

Enable the plugin in Edit > Plugins > MusterBox, then restart the Editor.

Use from C++

#include "MusterBox/Public/MusterBox.h"

auto* SDK = UMusterBox::Get();
SDK->Initialize(Config{ .GameId = "my-arena-game", .GameKey = "gk_...", .Environment = "sandbox" });
SDK->Start();
SDK->Authenticate("[e-mail]", "secret");
FSessionContext Ctx = SDK->OpenSession("sandbox", 1042);

Use from Blueprint

The module exposes Blueprint-friendly functions for the core flow:

• Initialize
• Start / Shutdown
• Authenticate
• OpenSession
• SubmitResult / SubmitEvent
• GetStatus / GetDiagnostics

Call Tick from your GameMode/GameInstance per frame if you use Manual runtime mode, or leave the default Threaded mode for background processing.

Support matrix

Unreal Engine	SDK	Plugin
5.3, 5.4	1.0.0	MusterBox

Next: Bevy.