Shacknews recommends Darkest Dungeon:
More information.We All Go A Little Mad Sometimes
Before you start seeing manifestations too horrible to describe, though, you inherit a huge manor perched above a decrepit town. From these humble beginnings you learn that your ancestor unearthed hellish beings that cursed this land and its inhabitants. It is up to you and the heroes you acquire to rid this land of the horrors.
Darkest Dungeon has the core elements of your typical roguelike: procedurally generated levels, permadeath, and punishing difficulty. However, it stands out from the crowd with its stress mechanic and the quirk/affliction system. Darkest Dungeon drives home the point that your adventurers are not overpowered deathbringers that can barrel through these dungeons while high fiving each other and chuckling throughout it. They are flawed humans that face horrors that they can barely conceive, and will leave them physically and mentally scarred.
Dungeon crawling leaves a toll on your party, causing permanent (well, permanent-ish) changes to them. Sometimes these changes can be beneficial. They may be able to navigate the Ruins better, or are faster at the start of a fight. However, most of the time they are afflicted with negative quirks like being more stressed in low torch light, or a drinking problem. The quirk and affliction systems create a personality for your adventurers, allowing you to grow attached to them, so it will hurt more when they die a brutal death. That's when, not if.
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Darkly Rewarding
Darkest Dungeon takes the staples of roguelikes and adds the atmosphere and themes of Lovecraftian Horror and does so with incredible success. The game captures the feeling of battling an unending wave of nightmarish abominations with little to no chance of hope. But when you do succeed you feel like a million bucks. The difficulty may deter many people from trying this game out, but if you are brave enough you will be rewarded with a rich experience.
Score: 9/10 - Great