Epic Citadel is a high tech interactive infomercial that demonstrates the Unreal Engine 3 technology. It was originally showcased at the Apple September 2010 special event. It was referenced as working title Project Sword at the time but would later transform from this Citadel walkthrough demo into the full fledged game Infinity Blade.
Controls allow gestures, destination path, and full viewing in any direction. Demo control is adapted to each platform used to experience the Epic Citadel. The player is allowed full access to any place that can be accessed on foot as he explores the Citadel. The menu has one option which is Guided Tour and allows viewing the Citadel from preset flying and sweeping vistas that repeat until interrupted.