Mixolumia is an Itch Dot Io indie that I didn't know I needed until I played it.

The  screw tighteningly hard difficulty and serene gameplay environment makes for a juxtaposition that keeps you in a focused flow state very much resembling that of Tetris Effect.

So if you want the difficulty and beauty of being hit in the face with a fistful of glitterthen Mixolumia is for you

~Loki