Shadowrun Extreme (shad-(.)o-, -*(-w)r*n ik-'stre-m) (1) Playing shadowrun with a group of characters so inherently powerful that they would have no reason to be in the shadows. (2) Playing those aforementioned characters in such a manner that corporations & nation states would spare no cost to see them eliminated. (3) In it's simplest form, using a games rule system against itself.