PuzzleManiak is a collection of 15 puzzle games (Bridges, Dominosa, Filling, Galaxies, Loopy, LightUp, Mines, Net, Pattern, Rectangles, Sudoku, Slant, Tents, Unequal, Untangle), most of them invented by Nikoli. All games are generated on-the-fly and have an unique solution, thus you'll never play the same puzzle twice. All games have a lot of difficulty levels, from easy to very hard.