Welcome to another instalment of Pocket Gamer's free game round-up - a feature that highlights the top App Store titles that have been made free in the past 24 hours.

As we've stated many times before, prices in the App Store change frequently. Grab these freebies before you miss out on a top bargain.

Remember to let us and your fellow readers know about any other great free apps in our comments section below.

Additionally, you can find out about all the latest App Store updates, price drops, and more by using the cleverly hidden hyperlink in this paragraph.

And if you're craving even more quality freebies, be sure to check out the Free App Alliance iPhone app for daily recommendations of the best free apps the App Store has to offer.

7th Code
By Maystorm Games - download for iPhone and iPad

7th Code is a first-person puzzle game in which you take on the role of a prospective space marine who's trapped inside E.N.I.G.M.A. - a training simulator designed to test your mental fitness.

In order to escape, you'll have to overcome puzzles; find three-digit codes and hidden symbols; and escape from 18 different rooms.

Fractal Combat
By NewType K.K. - download for iPhone and iPad

Fractal Combat offers fast-paced arcade aerial combat across seven different landscapes - all of which are packed with opportunities to earn Game Center achievements.

As you complete missions, you can upgrade your weapon systems, generators, and radars. Or, if you prefer, buy a whole new ship.