Welcome to this week's final 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 our sister site Free App Alliance for daily recommendations of the best free apps the App Store has to offer.

Back to the Future Ep 1 HD (iPad)

You can now jump into a pair of Marty McFly's Nikes and play the first episode of the five-part Back to the Future game series on your iPad for free.

In this instalment, you hop into the famous DeLorean Time Machine and travel into the past to rescue your good friend Doctor Emmett Brown before his future is destroyed.

We gave Back to the Future Ep 1 HD a Pocket Gamer Bronze Award when we reviewed it this time last year, so dust off your hoverboard, head on over to the App Store, and grab it.

Download Back to the Future Ep 1 HD

Anthill (Universal)

Anthill is a Pocket Gamer Bronze Award-winning tower defence title that tasks you with defending your abode from waves of enemy bugs.

Your troops, which can be directed by drawing pheromone trails on your device's screen, can be upgraded and boosted to increase their effectiveness against your foes.

At review, we called Anthill "a well-built and novel take on the tower defence genre". That means you should go and download it.

Download Anthill