Quadrax III is a non-official Windows freeware remake of Quadrax, with new
graphics and animations.

The gameplay is same – two characters have to be moved to a predefined place
in logical levels, screen is filled with obstacles, the characters need to
help each other get around by flipping switching, moving stone blocks, opening
doors, and using lifts. The game has 45 levels, which are much harder than in
the original game.

The 2005 Revision version includes a slightly modified engine (new
animations, some new music, sound effects) and 15 new levels (total 60).