Hypersudoku 1.4.2 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The most popular versions among Hypersudoku users are 1.4, 1.2 and 1.1.
The actual developer of the free software is Novel Games Limited. The default filename for the program's installer is hypersudoku.exe. We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software. The program lies within Games, more precisely Puzzle.
From the developer:
This game is similar to sudoku, except that there are extra 3x3 regions where the numbers must not repeat. In this game there is a grid of 9 x 9 squares, you need to fill in each square with numbers 1 - 9 so that the numbers in each row or column or each 3 x 3 group (the 9 groups surrounded by thick lines plus the 4 groups with dark background) do not repeat. The faster you finish the game, the higher your score.
You may want to check out more software, such as anagram, Sudoku Workpad or Fruit Fall, which might be similar to Hypersudoku.