On the bright side, Steam has Wasteland 2. I haven't played more than a week or so of it, but if you're looking for "isometric turn based combat RPG in a post-apocalyptic wasteland", it nails it. It felt like a Fallout, probably because Fallout took so much inspiration from the original Wasteland. The only thing that made it Not-Fallout was the absence of Pip-Boy or Nuka-cola.
