Mythgard. It's pretty good if you're into card games such as MtG or Hearthstone. It has enough resemblances to both as to feel familiar, but also enough differences/innovation as to feel fresh enough. At least in my opinion. The flavor of the cards is awesome. It has heavy fantasy elements, as expected, that are heavily inspired (sometimes with pretty straight-forward references) by actual human mythology from all around the globe (muses, onis, valkiries and stuff), but it is set in a futuristic society with huge modern cities and a lot of sci-fi elements. And a lot of references to modern life.
And, as far as I know, pretty much all gods were killed in the battle of ragnarok… or something like that. xD The story is unfinished, as they're still in open beta.