The Humble Store is currently in the midst of a Birthday Sale, and to celebrate its continued success of offering discounted games with a percentage of proceeds going to charity, the fine folks over there are offering up DiRT 3 Complete Edition for free! As in $0.00. All you need is a Steam account, and the ability to click on a few buttons.

Which really, isn't that hard. So grab your copy now.

In DiRT 3 Complete Edition, you’ll race iconic cars representing 50 years of off-road motorsport across three continents – from the forests of Michigan to the infamous roads of Finland and the national parks of Kenya. You’ll also express yourself in the stunning Gymkhana mode, inspired by Ken Block’s incredible freestyle driving event, and take on other modes including Rallycross, Trailblazer and Landrush. Powered by Codemasters’ award-winning EGO Engine, DiRT 3 Complete Edition features Flashback to rewind time, genre-leading damage and you can take on all game modes in split-screen and competitive online multiplayer.

And while you're there you might want to check out some of the other great Humble Store deals, like the most recent Dirty Rally which is currently 50% off.

Codemasters have today announced a Complete Edition of DiRT 3, the multi-award winning racing game, that will include a range of new upgrades and DLC for Xbox 360, PlayStation 3 and PC.

The Monte Carlo Rally Pack – eight breathtaking Rally stages featuring dramatic climbs, descents and hairpins of snowy mountain roads. Race through the Alps and conquer the legendary Col de Turini pass.

The X Games Asia Track Pack – four new routes set across two new tracks in Shibuya, the neon heart of central Tokyo, where spectacular mud-spattered Rallycross circuits weave beneath towering skyscrapers.

The Power and Glory Car Pack – stars five cars including the BMW M3 Rally, Lancia Delta S4, Ford Focus ST Rallycross, Scion tC and Chevrolet Camaro SSX Concept, each with a range of liveries.

The Mud and Guts Car Pack – features five cars available for single-player, split-screen and online multiplayer events. Race the Lancia Stratos, Peugeot 205 T16 Evo 2, Citroën C4 Rallycross, Saturn Sky and Ford Mustang GT, each with a range of liveries.

The Colin McRae Vision Charity Pack – access the Ford Escort Mk II, a 70s rally classic with five liveries.

The Ken Block Special Pack – features a customised and upgraded Ford Escort Mk II, an Open Class Rally car sporting a killer Ken Block livery.

The Mini Gymkhana Special Pack – access the mid-engined Mini Cooper S Gymkhana, customised and tuned to become an outrageously responsive Gymkhana car.

DiRT 3 Complete Edition will race into retail 9th March 2012 for all three platforms.

Check out ourAusGamers review, where we gave it a 9.0 out of 10, an excellent score for a great racing game.

It's a little belated, but we've been a bit hung up here at AusGamers with the pre-E3 and E3 slaw and travel, but now that the dust has settled, we grabbed Grizz to kick up even more dust and give us his run-down on what he calls his "favourite driving game of 2011".

This review is definitely geared to all the rev-heads and rally aficionados out there, of which Grizz is one, and so he goes into great detail chicaning his way through all of the game's features, waving a positive checkered flag at the series' return to traditional rally roots. It does maintain some of the newer fun aspects, such as Gymkhana, but this is to the game's advatange, according to his review.

Click here for the full review.

Codemasters have sent along a new trailer for their hotly anticipated DiRT 3 rally game, showcasing the game's Group B Rally mode, hailed as a "golden age" of motorsport and featuring cars such as "the Audio Sport quattro Rally and Lancia Delta S4 hammering through forest roads and across arid scrublands".

Group B is synonymous with a short-lived period in Rally where light regulation and few restrictions on car development led to manufacturers producing some of the most exciting cars that the sport has ever seen. Group B cars have since entered Rally folklore since cars with their astonishing power couldn’t have been developed during any other era of the sport. Sadly, these iconic cars were involved in an increasing number of accidents, which resulted in the banning of Group B Rally in 1986.

The gameplay video showcases these super-charged icons of Rally being put through their paces in wide ranging conditions, from tarmac to dirt and snow. In DiRT 3, the Group B discipline gives players the ultimate test as they jump behind the wheel of some of the most famous cars to compete in the sport including the Ford RS200, MG Metro 6R4 and Peugeot 205 T16 Evo 2.

Watch the video below or click here for the HD option.

DiRT 3 is due in Australia on May 26 2011 for PC, Xbox 360 and PlayStation 3. For more details, check out AusGamers' recent hands-on preview.

AusGamers was lucky enough to hang out with the cats at Codemasters in the UK a little while back, and still have a bit to tell you about the visit. Today we're buckling for a ride in the next DiRT series update, DiRT 3.

For fans of the series wanting more rally than has been prevalent of late, the good news is the team have heard you concerns and approached the third game accordingly. It was one of the first things they really talked up to us, and with more than 100 courses, varying weather and times of day and combinations of all of that, we're inclined to agree. But there's more here, which we break down in today's hands-on preview.

Click here for the full drive-through.