Free iPhone and iPad games - The Journey Down: Chapter One, The Mystery of the Crystal Portal HD (Full)

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.

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In the first episode of this 'traditional' point-and-click adventure, you help a gas station worker called Bwana and his sidekick Kito in their attempt to uncover a missing journal and reveal the true fate of their long-lost father, Captain Kaonandodo.

The Journey Down is heavily influenced by black African culture.

Plenty of the game's character and pattern designs are inspired by carvings and masks from the Makonde and Chokwe tribes, for example, and there's a rather excellent reggae soundtrack, too.

You're a young girl called Nicole. Your father, who's just made a discovery that could change the course of humanity, has disappeared.

It's your job, then, to hunt him down and discover the truth behind his latest invention.

This hidden object title contains 22 different levels and a whole bunch of mini-games.