Prerequisites

Complete these steps once before working through the Overview series.

Enable plugin content

The plugin ships demo maps, hardware Blueprints, program collections, and UI widgets under Engine → Plugins → OperatingSystemSimulator.

1. In the Content Browser, open View Options.
2. Enable Show Engine Content and Show Plugin Content.

See Getting Started for screenshots and the DemoMap path.

Build the project

If Unreal reports module ‘GlobalCore’ could not be found, generate Visual Studio project files from your .uproject and build once. Blueprint-only projects still need this step.

→ Troubleshooting: GlobalCore

Editor preference — timers and delays

The plugin relies on Delay nodes and timers. With Use Less CPU when in Background enabled, PIE can stall when the editor loses focus and boot/install sequences may hang.

1. Edit → Editor Preferences → General → Performance
2. Disable Use Less CPU when in Background

Copy before you modify

Caution

Do not edit default plugin .uasset files. Duplicate assets into your project’s Content folder and modify the copy.

Recommended learning path

flowchart TB
  subgraph row1[" "]
    direction LR
    Prerequisites["Prerequisites"] --> Demo["Try the demo map"] --> Actor["Create a device actor"]
  end
  subgraph row2[" "]
    direction LR
    Device["Create a device"] --> OperatingSystem["Create an operating system"] --> Programs["Programs & terminal commands"]
  end
  Actor --> Device

Step	Tutorial
Explore working example	Try the demo map
Minimal custom OS	Create device actor → device → OS

See the full tutorial overview for all guides.