Hell yes. Played the demo, I bought the game and played the first couple floors (which are pretty much the same ones from the demo), but there's a little bit extra. Each floor has different challenges to complete, earning you medals which can unlock new customization items, and probably new dungeons when they get added (I saw something online saying there isn't much more than the starting castle dungeon yet). There's also been a magic cat added, that will wander around levels when you start them and drain any magic items you've restored, causing you to track it down and put it in its spot so it doesn't mess you up.