Spectre CubeA variant of the Ghost cube designed to have pairs of opposite pieces that are mirroring each other.
Square 3DA unique combination of Square-1 and 2x2x2.
Square MixupA Square-1 where a 90°-move for the central square is a meaningful move.
Square-1The logo on this version is written in a different font.
Square-1 1/2A Square-1 with the smaller pieces split in halves.
Square-1-IIA two-layer custom modification of the Square-1
Square-1/2A Square-1 bandaged to have identically sized pieces.
Square-2A modified Square-1 where the corners are split into two pieces
Square-3A Square-2 with pieces which were further split up.
Stair CubeTwo layers of different windmill cubes combines with the middle layer of a Fisher Cube.
Stochastic Cutting CubeA Square-1 (or better: a Star Prism of the Square-1) transformed into hexahedral shape while in midturn.