IceBreaker

IceBreaker is a single-player action-puzzle game inspired by but not an exact clone of JezzBall. Penguins — or other objects, depending on the chosen theme — bounce around a rectangular grid, and the player must subdivide the grid into areas with and without penguins. Once enough area is cleared, the game advances to the next level. Points are awarded for area cleared in excess of the threshold and for speed. Each level adds more bouncing objects.

IceBreaker is free and open source software and can be downloaded from https://mattdm.org/icebreaker/. It is available for Linux-based operating systems and for Microsoft Windows.