Quakecon 2015 kicks off today, as does the Steam sale that follows it. What does that mean? It basically means that every Bethesda game ever released is on-sale. This is a good thing.
The crown jewel is the Bethesda Bundle, which packs together roughly A MILLION Bethesda games for US$130.99. It's a saving of about US$267.76, which is pretty decent. It includes every Quake ever, Dishonored, The Evil Within, Skyrim, and all of the Fallouts. Pretty cool.
But of course, you can buy all these games individually which is, realistically, the better option unless your name is Scrooge McDuck and diving into a pile of $2 coins is a thing you like to do.
Anyway, I'm not going to list individual deals. There are too many good ones. Go and explore!