This game is truly wonderful. Mechanics-wise it reminds me of Demonrift TD, but it's clearly a better game overall. The upgrade tree is well thought out, the achievements (though it would be nice if you earned something from them) are enough to keep anyone busy for hours on end, and the sly references to pop-culture are certainly amusing. The difficulty-scaling is just about perfect, and beating the game on easy only makes you wants to play through it again on normal, or try to earn those last few stars on the Heroic and Iron missions. We can only hope badges will be added soon.