Strike Suit Zero, which may interest people is 80% for 3.99 USD right now but only for the next 20 minutes.
The best thing about GOG is that if you already own games in a bundle, you can get the bundle at a pro-rated price if that's the right term. Same and Max collection is 90% off for example for all three, but individually games they're only 60%. I already had two of the games but had missed the third in the last sale but I still got that game at 90% off not 60. Pretty sweet