Online since 2002. The most comprehensive site for all around twisty puzzles.

Peter Sebesteny
Rubik's Revenge (Tsukuda)ITC's version of the 4x4x4, sold in Japan by Tsukuda.
Rubik's Studio 4x4x4The new retooled version of Rubik's Revenge produced in Hungary by Rubik's Studio.
Rubik's Studio 4x4x4 (Japanese version)The new retooled version of Rubik's Revenge produced in China under license of Seven Towns

Wonderland Master CubeA knock-offed 4x4x4 from the original cube craze.

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