See Epic's Unreal Engine 3 running in HTML5
Unreal Engine 3-powered, HTML5-ready demo game Epic Citadel
is now open to the public from Epic Games' website
. "This allows [developers] to distribute visually stunning and performance intensive games to billions of people more easily and cost effectively than before."
demo also ships with Epic's free Unreal Development Kit.
In addition to the HTML5 version, Epic Citadel
is also available for iOS and Android. You can learn more at the studio's website