In 2010, Epic Games released the Epic Citadel tech demo to show off what the Unreal Engine could do on an iPhone. Now, it's re-released that same demo running in a web browser on Flash 11, for you to have a look yourself. Epic also showed off Unreal Tournament 3 and Dungeon Defenders running in Flash, with only a moderate performance hit.
"For the same piece of content there is definitely a penalty on Flash in terms of CPU performance," Epic's Mark Rein told our roving reporter Andrew at GDC, but the Flash version of Unreal Engine 3 still runs around 70% as fast as the regular. Given how much more portable and accessible it is--the Flash Dungeon Defenders only has a 15MB initial download--it's a reasonable hit, and Rein noted he can still run DD on his lowly Macbook Air.
Epic Citadel isn't simply a fancy display of something Epic might do--Flash is now an official supported platform of Unreal Engine, thanks to Flash 11's GPU-accelerated 3D. It should almost certainly be a standard feature of Unreal Engine 4, which Epic plans to unveil this year.
As befits the Game Developers Conference, Epic also whipped together a trailer showing off the various shiny features the Unreal Engine 3 has to offer developers in 2012:
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