I'm not sure what's going on. I think it's been a long time since Apple's featured a whole bunch of premium, quality games and put them on sale. Maybe it's for Labor Day? Or maybe it's the indiepocalypse?? Whatever it is, you can snatch all these goodies up for super cheap. Most of them are free of in-app purchases, too, so you can just pay a measly buck and enjoy them as…