The Witcher 3: Hearts of Stone

Let's make a deal. Just meet me at the crossroads. Following through on our promise to cover all of the Witcher 3 content, this episode brings the best game expansion we've ever played. A routine Witcher contract drags Geralt into the middle of a conflict between two terrible people. On one side, you've got Olgierd von Everec, a noble-turned brigand who can never die. On the other, Gaunter O'Dimm, a vastly powerful being who grants wishes at a price.

Seriously, go and play this. The writing is astonishing, and it explores some ethical space that's just not seen in games.