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Watch Unreal Engine 4 running in Firefox

Next-gen tech demos run at "near-native" speeds.

Epic Games and Firefox maker Mozilla have showcased Unreal Engine 4 running straight out of a browser.

The latest technological leap requires no plugins and yet can run Epic's Soul and Swing Ninja demos at "near-native" speeds.

"This technology has reached a point where games that the user can jump into via a web link are now almost indistinguishable from ones they might have had to wait to download and install," Mozilla exec Brendan Eich said.

"Using Emscripten to cross-compile C and C++ into asm.js, developers can run their games at near-native speeds, so they can approach the Web as they would any other platform."

Crank up the video below to HD and take a peek:

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Tom Phillips


Tom is Eurogamer's Editor-in-Chief. He writes lots of news, some of the puns and makes sure we put the accent on Pokémon. Tom joined Eurogamer in 2010 following a stint running a Nintendo fansite, and still owns two GameCubes. He also still plays Pokémon Go every day.