It isn't on sale, but Fear & Hunger is only 8 dollars and I can provide a torrent (albeit only for the linux native version). I have never felt so disturbed, weak, and scared from a game as I have from Fear & Hunger. It's very rough around the edges and take each trigger warning with extreme heed, but is a wonderful game about failure and body horror. I love the way it explores erotophobia in a way that isn't titillating, but rather makes you want to shower in the dark for a week after playing it. It is a turn based RPG with amputation-based combat, no leveling system and a lot of struggling. The charecter designs and monsters are all top notch, I personally love how Le'garde and Ragnavaldr are drawn, Sylvian and Marriage both capture the cosmic horror vibes pretty well, and the Harvestmen and Uterus are great monster concepts.

Oh, and beware of the Crow Peckers.