The campaign is relatively short, you can definitely beat it within 5 hours, but it is worth it. This game is based off clever mechanics and nice ideas that don't seem very apparent from the store page but actually playing the game makes it clear how good they are. The director's cut version adds (i think the time trials DLC as well) the story to the game. In-game dialogue that creates a story that admittedly seems very generic at first but actually gets pretty deep and interesting later on in the game. Unlike the original, it actually feels like your solving these puzzles with context rather than just mindlessly doing them. That was my only gripe with the original. Very nice art design, even if it is pretty plain, I've grown to appreciate it. (very easy to run as well) and finally the soundtrack they added to the game is actually very nice, adds tension where needed but also mellow relaxing music for puzzle solving. It just works so well.

Q.U.B.E. Directors Cut is a short puzzle game similar to Portal, the basic mode is meant for about 3 hours of gameplay, but it contains the dlc which effectively extends the game by several hours. Difficult levels appear only in Act 5/6. The game sometimes has random drops in performance and I often had to restart the level because some of the puzzles refused to obey and did not respond to click. A Rather fun game with several levels that are very complicated and that's advantage.

Q.U.B.E. is one of those games that probably would have never existed if Portal wasn't released. This first person puzzle is a great option in puzzle games and, considering how many titles try to do a game based on that genre and fail you should give Q.U.B.E. a try. Actually, Q.U.B.E. has more to do with classic platform games than puzzles. Most of the time you just need to build a structure to make your progress through the game jumping from one platform for another. When it becomes more interesting the game ends, giving you the feeling that it could have gone way further into its own mechanics. Director's Cut has a better structure than the original. Now there is a story behind the game and more sense of a progress in game.

Qube is a puzzle game in which you must solve some rooms using cubes manipulation. This Director's Cut contains a story (because the original didn't own one), the DLC and some modifications to the levels (for example, some rooms now aren't in the game anymore). If you already played the original Qube, there's no reason to try this one. Otherwise, this could be a nice puzzle game.