Okay here we go with day 9 of the summer sale. Only two days left. For prices and more check out reddit.

Daily Deals

The Elder Scrolls V: Skyrim - Legendary Edition
Monaco
Trials Evolution Gold Edition
Baldur's Gate: Enhanced Edition
Sid Meier's Civilization V
Metro Last Light
Train Simulator 2013
Awesomenauts
GRID 2
EVE Online

Flash sales

Portal 2
Star Trek
Rayman Origins
Fable III

Btw many other games on steam are price reduced and werent listed in daily and flash. So do some search. I bought artwork games like Beyond Good & Evil and Psychonauts.