Kentucky Route Zero, probably one of the most beautiful games of 2013 so far, has been in sale after sale this month (the latest of which is ending in just one hour). It's now moved from many peoples' wishlists onto their own waitlists -- backlogs of great games that just need the right combination of mood and free time to actually get played -- as many games do when Steam Sales hit. If you're one of the deal hunters who's snapped this game up, take my advice: Don't wait. Play it as soon as you possibly can.
... And if you have yet to add this surreal adventure to your collection, man are you ever missing out.