Also, one of the underdog indie titles that probably no one will mention, but deserves mentioning: Scratches. I haven't played it yet, but some people on Reddit have strongly recommended it. It's a very well-designed and very creepy point-and-click adventure game. The horror is fairly subtle; it's not "OOGA BOOGA" scary like most other modern horror games; but more of a "woah, did that really just happen?" kind of scary.
It'll probably be the one game that I buy from this sale (seeing as I already own most of everything there ).