Wish you could run one of those awesome Unreal Engine 4 tech demos on your own hardware instead of watching its lossy, pixellated video-grabs on YouTube? Well, now you can. Epic's "Elemental" tech demo for Unreal Engine 4 cropped up on the web, and we wasted no time in re-hosting it for you. The demo doesn't appear to be a public release, but something developers put together for demos to be run by Epic and its partners, only. To begin with, it doesn't come with an installer. You have to extract its files into a folder, and manually edit its settings INI file to specify resolution, window behaviour, and other settings. You then have to install VC++ 2013 runtime if you don't already have it (the redistributables are included in the archive), and then run the demo from the relevant batch file. Unreal included both 32-bit and 64-bit executables. When you're done drooling rainbows at the demo, only an Alt+F4 closes the thing down (there's no in-demo UI). There's no internal benchmark, and you're left to use third-party frame-rate loggers. These little issues aside, the demo sure makes Unreal Engine 4 look promising. We also added a collection of five other tech-demos for your viewing pleasure.