It's that time of the month again, when Pocket Gamer gives away a bounty of codes for last month's absolute best games to our wonderful community, the App Army.

For those unaware, that's our diehard band of mobile gaming enthusiasts. In exchange for their critical thoughts, we give them codes for unreleased games on a weekly basis and you can join in the fun by simply signing up on Facebook.

That's a requirement to get a chance at a code in the giveaway, but more on that later. Let's kick things off.

Layton's Mystery Journey

Layton's Mystery Journey is a brand new entry in the franchise, and the first to release exclusively on mobile. It follows the Professor's daughter as she solves mysteries in London while simultaneously trying to track down her missing father.

That mostly involves a bunch of touch-based puzzles - this is a Layton game after all. You'll also meet a bunch of interesting characters and visit some nice London locations. Spiffing.

At review, we gave Layton's Mystery Journey a coveted Gold Award and said: "Layton's Mystery Journey may be a big investment, but if you're a fan of the games or love solving puzzles in general this'll be well worth the money".

Okay, I'll give it a go

Not so fast! First you have to sign up to the App Army here, then write your name as it appears on Facebook in the comments beneath this post. We'll then select the lucky winners over the next few days.

We have iOS and Android codes for this one, so make sure you specify which platform you'd like a code for. Entrants who don't specify will be ineligible for entry.

And that's it. We'll be back tomorrow with a brand new game so keep checking back at 5PM BST.

What's the App Army?

The App Army is Pocket Gamer's very own community of mobile game experts. Each week, we provide them with a bunch of free codes and early access to the hottest upcoming games so they can provide their thoughts in features like this. We also host regular community-driven events with them in mind like tournaments, giveaways, and multiplayer evenings. To join, simply follow this link to the page on Facebook.

Want more? Check out our growing collection of Layton's Mystery Journey articles!