While Q.U.B.E. Director's Cut
does add these voiceovers and, in turn, an actual story, the gameplay itself doesn't change from the original version.
Your character wakes up in a white room with odd gloves on. It doesn't take long before you figure out that these gloves let you manipulate a specific set of cubes in each of the rooms. These blocks, color coded for convenience, can be extended, arranged as a stair, act as a springboard, or even cause sections of the rooms to rotate. With these basic controls at your hands, you will have to make your way through the series of puzzles the strange environment throws at you.
While the puzzles start off simple, they gradually build up to more complex situations that require you to use combinations of different colored blocks, and even, at times, require you to have expert timing in making sure some falling objects hit their targets in just the right way and at just the right time in order to unlock the next room. Of course, that kind of gradual increase in difficulty is expected in a game like this, and while it does throw a few curve balls at the player, it never really ventures far from its core mechanics.
As mentioned above, the addition of the two voices adds a bit of mystery to the situation. As you make your way deeper into the Qube, you are told two opposing stories. One gives you hope that you are saving the Earth; the other is that you are being lied to and everything you do is pointless.
Q.U.B.E. Director's Cut also adds 10 additional speed run levels. These puzzles come with a timer and awards medals based on how fast you complete each challenge. The more medals you earn, the more challenges you unlock. These extra levels offered me a nice distraction when I found myself particularly frustrated by puzzles from the main story.