Tetris, on cocaine!
In that it requires a lot of strategy, and the mixing of combining colors. That in my opinion is a bad comparison, but that doesn't make it a bad game. It can make it rather difficult at times, but once you figure out how at best to win, it shouldn't be to hard. Sometimes I've just gotten lucky in my victories.
The story to me is kinda forgettable, but still enjoyable. It can get a little old once you've mastered one character, you have to move on to another one, and start all over again back at level one. But at least it gives you different types of strategies, soldiers, and artifacts to use in this game.
Now if I sound like I'm being too critical, I don't mean to, I'm just being honest. I really did and do enjoy this game. I liked it so much from the demo that I bought it.
If you enjoy puzzle games, with a bit of a mix of an RPG element, check this game out, and I hope you enjoy it as much as I did.