Q.U.B.E. is a game about problem solving and navigation. The art style is kind of like Portal but instead of using portals, the player has to navigate through each level by manipulating coloured cubes that surround them.
Unfortunetly there is no story at all other then you wake up at the begining of the game and you just solve puzzles.
The puzzles in Q.U.B.E. start out simple and get progressively more difficult. Progression is unfortunately linear, there is only one way to solve a puzzle.
Q.U.B.E. has also some bugs and the main game is very short.
All in all I would say that Q.U.B.E. is still a good game, the puzzles are very satisfying. For fans of Portal and other puzzle games it is worth a try.