Terrible. Just terrible. Can't even recommend for die hard duelists. Glitches, card ruling errors, crashes, it's all here! Worse than a 2000s Gameboy game. This was obviously not finished on launch. Why does an AI program take 10 minutes? (LITERALLY?) Maddenly slow plays in solo. I often put this down for a while walk away, and he's still "thinking". It's a freaking AI. THIS PROGRAM WAS INCOMPLETE ON LAUNCH! DO NOT FOOL YOURSELF, THIS IS NOT A GOOD APP. Wish the devs weren't so useless.