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 our sister site Free App Alliance for daily recommendations of the best free apps the App Store has to offer.

WonderCraft (iPhone)

WonderCraft is a brand-new multiplayer naval-themed blast-'em-up that allows you to choose a shiny battleship and compete in real-time battles with other players from around the world.

AI-controlled opponents will also enter the fray from time to time. When this happens, you'll have to form brief alliances with your real-world foes to overcome their advances.

Your range of dangerous ships can all be customised, modified, and upgraded to better compete with incoming threats.

Download WonderCraft

Extraction: Project Outbreak (Universal)

In this top-down 3D shooter, you assume the role of a hardened private military contractor, who has been hired to eradicate hordes of flesh-eating zombies.

You do this over a single-player campaign that's said to last between four and five hours, and across four different multiplayer modes: Extermination, Rescue, Repair, and Escort.

Extraction: Project Outbreak earned a prestigious Pocket Gamer Silver Award when it shot through our special review room back in November 2011.

Download Extraction: Project Outbreak