Epic Games, the maker of highly-regarded franchises like Gears of War and Infinity Blade, is probably equally well-known for its Unreal Engine. While Unreal Engine 3 still looks great, it's starting to show its age a bit — so Epic has finally given the gaming world a look at Unreal Engine 4. According to Polygon, the company is giving a closed-doors demo of Infiltrator, the first tech demo running Unreal Engine 4 at the 2013 Game Developers Conference. Judging from the screenshots Polygon posted, it's a pretty impressive step forward, and the hardware requirements aren't even that outrageous. Epic VP Mark Rein tweeted earlier that the demo was running in real time on a "single off-the-shelf Nvidia GTX 680." While Unreal Engine 4 has been in development for a long time, it's looking like it'll be ready for prime-time on the next-generation consoles. Unfortunately, there's no word yet on when we might see games with Epic's new engine — for now, this video will have to do.