Against the Qlock is an amazing DLC you really should consider buying due to its extensive content as it features 10 completely new and beautifully designed levels that you will be able to play while listening to the astonishing new soundtrack. Upon purchasing, you will also receive new (in my opinion quite hard-to-achieve) achievements and something I find to be the worst part of this DLC - a new space environment. You will be also given access to online leaderboards and statistics, where you will be able to compare your ratings and achievements with other players. And now that we covered the content, let's move to gameplay features! Against the Qlock DLC guarantees thrilling experience where you will need to get to the end of the level as fast as possible while solving difficult puzzles on the way there (you will also obtain achievements for your performances). I found it to be very enjoyable and fun to play, since I'm a huge Q.U.B.E fan and have been playing it for more than 100 hours now. This DLC made the base game so much more exciting than it used to be. And that's obviously a big plus, so I'd really like to thank Toxic Games for making such a wonderful DLC. And the price - oh, the price, gentlemen! It's so darn cheap! For only 4,99 USD this DLC is - you guessed it right - worth every penny!