Free iPhone and iPad games: Cave Bowling, PD -prope discoverer-

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.

Cave Bowling is a physics-based game of bowling with a twist. Instead of bowling on a brightly lit lane at a sweaty bowling alley full of 13-year-olds, you hurl balls around prehistoric arenas filled with animals and obstacles.

There are 60 of these prehistoric arenas to bowl your way through - all of which have to be mastered if you wish to nab a three-star rating.

At review, we called Cave Bowling a "fun-filled arcade game with personality and substance to match", and presented it with a shiny Pocket Gamer Silver Award.

PD -prope discoverer- is an Unreal Engine 3-powered title from developer Prope: the studio set up in 2006 by Sonic The Hedgehog creator Yuji Naka.

Your aim is to explore a 3D castle and collect hidden cards - there are three in each area of the castle - that allow you to open doors and progress through the title.

These collectible cards change their position every time you begin a new game, so you can play through it multiple times without getting bored. Probably.