"Sometimes, evil wins."
So yeah, recently I've been playing Tyranny on the PC which has just been released. If you've played other CRPGs like Baldur’s Gate or Neverwinter Nights you should already be familiar with the sort of gameplay mechanics in Tyranny. It's like Dungeons and Dragons converted into a video game. But the gameplay (even though it's highly polished) isn't why you want to play Tyranny - the unique thing about Tyranny is that the story is set after the forces of darkness have triumphed in the final war between good and evil.
You play a 'Fatebinder', kind of like a travelling judge/detective/enforcer whose jobs is to maintain order in the recently conquered lands of the Tiers. So, the central moral conflict of the story isn't between good and evil, because all the archetypal good characters are already long dead by this point. Rather, the real central conflict is between lawful evil and chaotic evil (in the D&D sense), as two of the evil empire's main armies (with vastly different ideologies and fighting styles) squabble over who gets to control the new territory.
This game is filled with hard choices and moral grey areas, where there isn't always a moral high ground to claim. Honestly though, I find Tyranny's take on evil refreshing. So many CRPGS take a half-assed approach to moral dilemmas, where you're either following the game's intended script or you're a randomly destructive moron, which is less an accurate depiction of evil and really just the acts of a character that can't control their impulses. Tyranny is smarter than that, showing that evil characters can still uphold the law (especially their own law) and generally protect the people in their domain, even as they accumulate ever greater amounts of personal power.