Unreal Engine PCG Python Integration Guide

Overview

Python interacts with UE5's Procedural Content Generation (PCG) framework at two levels:

1. PCGPythonInterop Plugin (UE 5.5+, Beta) -- An editor-only PCG graph node ("Execute Python Script") that runs Python code mid-graph.
2. PCG Python API (UE 5.2+) -- Standard unreal module classes (PCGComponent, PCGBlueprintElement, etc.) for editor automation and custom node logic.

Important: All PCG Python functionality is editor-only. Python cannot run in packaged builds or at game runtime.

Official Documentation