• Make sure you have git-lfs installed.
• Clone this repository and download external dependencies.

git clone https://github.com/ncsoft/Unreal.js
cd Unreal.js
git submodule update --init
cd Examples/Plugins/UnrealJS
install-v8-libs.bat (for windows)
./install-v8-libs.sh (for other platforms)

• Open JavascriptPlayground.uproject and click to rebuild.

• Clone or Download the Examples directory of the Unreal.js repository
• Create the Examples\Plugins\ directory
• Copy the already built plugin content to the Examples\Plugins\UnrealJS directory
• Open the Examples\JavascriptPlayground.uproject file in the UE Editor
• Load one of the example levels from the editor's Content Browser
• Run the level in the editor to see Unreal.js in action
• If something goes wrong while running the level you can probably get useful information in the Javascript Console (Window > Developer Tools > Javascript Console)

Install additional Node.js dependencies

• For the helloSpringy.js example you will need to install some external Node.js dependency packages
• This is done by using the npm command line utility
• Open the OS command prompt / shell and cd to the Examples\Content\Scripts\ directory
• Install the required dependencies by using the npm install command
• The node_modules directory with the downloaded dependencies should have been created
• You can then try out and run the helloSpringy.js example