Back in 2013, Epic tried to build hype for its then-unreleased Unreal Engine 4 toolkit by showing a tech demo, "Infiltrator", to select audiences at the Game Developers Conference.
More than two years later, the company has made the project files and assets for that demo freely available for anyone to download, tinker with and use in their own projects through the "Learn" tab in the Epic Games client.
Epic has been on a bit of a minor asset-dumping spree this month, releasing both its "Showdown" VR demo from Oculus Connect 2014 and roughly 7,600 Infinity Blade game assets for Unreal developers to use in their own projects.