I picked up CivV Gold several weeks back during a sale(12.50), and definitely agree with Heavenfall, get it, great deal. G&K and the DLC made the game enjoyable to me, wasn't a fan of the vanilla version. So far during the sale I've only grabbed Torchlight II, but I'll likely snag a couple more before the end. Just noticed something after the final day sale items went up; some of them are still available down below under the Top Sellers list for better discounts, might be worth taking advantage of.
King Arthur 2 Collection is a neat game, bought it back upon release via Gamersgate, and it was a buggy mess, but did enough stuff right that you could overlook or workaround the bugs. There was a bit of an uproar when they decided to release their last patch via Steam only, took months for them to get Steam keys to GG customers, but they finally did. I think there is still an issue with a couple of the quests, but I haven't fired it up in a year or so. Still, it's a fun ride, especially if you are a fan of the story, and is kind of Total War lite, but with magic items and heroes. Archers and magic rule the battlefield, and you get to play with all of the Round Table crew. Good purchase for the price, fans of LH should find it enjoyable.
Edit: Just an FYI, the typical number of LH players online has doubled since the sale, guessing that the move to Steam is working out well.