Adam has posted before about top-down survive-versus-zombie-apocalypse game Survivor Squad, but now there is more to say! Developers Endless Loop have released a demo of the game as a part of their Greenlight campaign. Why not try it and give them a Greelightian thumbs up if you like it? I think that's the idea, anyway.
Oh and there's a trailers below, in the dark.
I have to say I rather like the idea of this: "Scavenge for supplies in every corner of every building, craft your gear, pick your skills and loadout while keeping your Squad alive by covering every corner and moving as a group." And I've always been a sucker for top-down games, ever since the Amiga, and so this appeals. The viewcones stuff remind me of Teleglitch, too, which is a good and strong influence.
Hell, it makes me think you could do an amazing demake of Day Z. Top down wilderness survival sim. Oooh.