Damn, this is a lovely little twist on the whole tetris concept. It reminds me of tricky towers, on steam, which is a bit similar, but your deck/card setup is very unique. The one thing that I'm really missing is some sort of snapping. I know the non-snapping is part of the difficulty of the game, but hear me out: I'd encourage snapping, in combination with a screen that's endlessly scrolling upwards, automatically, and you have to keep up or you'll lose. This way, you have to choose blocks from your deck quickly, but you won't be frustrated because a block you thought would fit, barely doesn't. By the way, I adore the polish on the little deck and placement animations, it feels so good! Get some good sound going and you're golden. Good job on this entry, hope you continue working on this :)