People thought "Far Cry 3: Blood Dragon" was an April Fools joke, but it turned out to be a real thing - an "expansion" (though it'll be sold as a standalone item - $14.99US for about an 8 hour campaign - that does not require a copy of FC3 to play) that takes the puuuuuurty game engine that FC3 used to render hyper-realistic jungle environments to instead render a neon-infused scifi/action game with an aesthetic somewhere between mid-80s B-movie and NES-era action game (think Power Blade, Strider, etc) blown up into a 3D FPS.
Yeah. I like this. Let's have more expansions on the line of this (and more smaller, non-budget-buster-pricing titles too) now that "zombie mode" has more or less played itself out.