All the gamers who are on a tight budget will be pleased to hear that Humble Indie Bundle 14 has launched. You can get Pixel Piracy, Unepic and Super Splatter for as low a price as you want, but it might be good to dish out a bit more dough. If you beat the average (currently a bit under 6 dollars), you can get Outlast, La-Mulana and Torchlight II. The last is an action RPG, and it will surely appeal to fans of the Diablo series. There are still some unannounced games also, so there might be even more incentive to pick up the bundle.
If you're willing to pay 10 dollars, then you can get all previously mentioned games as well as Shadow Warrior's Special Edition. And if you're feeling particularly generous, you can purchase the ultimate bundle for 40 dollars. For that you will get all the games, and also a custom t-shirt and a patch.