free multi-dimensional Tetris-like game
Galois is a computer game of the "falling blocks" type, but with unique features. Unlike most other games of that type, Galois is not limited to blocks made of four two-dimensional square bricks: you can choose among several different brick shapes, blocks composed of more or less bricks, and even between two- and three-dimensional games.
Homepage: https://www.nongnu.org/galois/