Yosumin! by Square Enix is a puzzle game available on Windows. In this game, the player needs to make rectangles of the same type of yosumin to make them disappear. As the player progresses, they will earn special Treats which will help them complete the levels. There are two game modes available, the Adventure mode, and the Endless mode.

In the Adventure mode, the player needs to work their way through the world of the yosumin in search of the lost pieces of their treasured stained-glass window. This mode has more than 180 challenging stages. The Endless mode is a never-ending game mode where the only limit is the player's skill. The graphics of the game are cute and fun, and the sounds and voices are rich and fun-filled.

Overall, Yosumin! is a simple yet challenging puzzle game that will keep the players engaged for hours. With its two game modes, cute graphics, and fun sounds, Yosumin! is a great addition to the puzzle game genre.