Your wallet is about to get a bit lighter. Or, if you lack self-control, a lot lighter. That's because over the next 13 days games on Steam will be marked down dramatically during this year's summer sale. The first crop includes up to half off the Final Fantasy franchise and 70 percent off underwater indie charmer Abzu. Hyper Light Drifter has been discounted by half as well, and if you wanted to explore Mafia III's version of the Luisiana bayou, now it'll only cost you around $15.