Critical Mass Deluxe

An incredibly addictive puzzle collapse game of simple logic. Challenge your skills in five different game modes with bonuses, tricks, etc. Test your skills in timed modes or challenge yourself in tactical or strategic modes.

SudokuMeister - play and solve Sudoku puzzles on your computer. It is very easy and comfortable to use and offers a lot of useful features like providing solution hints. You can save puzzles and exchange your favorite puzzles with your friends.

This game seems to be simple when you start playing but soon you realize that it demands a heavy thinking. You need to think over with each next level coming. The rules are easy to understand and remember.