Amazon is currently offering a $20 credit to be used towards a future video game purchase after you pre-order the standard edition of the video game Gears Of War 3 for Xbox 360.

Also, with the pre-order, you’ll receive the exclusive character skin Savage Kantus. A code for access to the Savage Kantus character skin will be emailed to you within two business days after the product ships.

The game will be released on September 20, 2011 for Xbox 360. There will also be a Limited Edition and an Epic Edition — the pre-order for these do not offer the video game credit, but they do come with the exclusive character skin Savage Kantus, as does the Xbox 360 Gears of War 3 Limited Edition Console Bundle.

There’s a pre-order price guarantee for all editions, so if you pre-order now and the price decreases between your order time and the end of the day of the release date, you’ll receive the lowest price.

Note, the promotion can end at any time, so get in on this now while it’s available.

From the product page:

Get a $20 Video Games Credit
Pre-order Gears of War 3 and get $20 off a future video game purchase. The promotional code will be placed directly into your Amazon.com account within 2 business days after the product ships. Additionally, receive the exclusive character skin Savage Kantus. The Savage Kantus code will be e-mailed within two business days after the product ships. Offer valid when shipped and sold by Amazon.com. Limit one per household. Amazon reserves the right to change or terminate this promotion at any time.

Gears of War 3 is the spectacular conclusion to one of the most memorable and celebrated sagas in videogames. Developed by Epic Games exclusively for Xbox 360, Gears of War 3 plunges players into a harrowing tale of hope, survival and brotherhood.

In Gears of War 3, players fight on as Marcus Fenix, the grizzled war hero and leader of Delta Squad. Eighteen months after the fall of the last human city, the war against the Locust rages on. Meanwhile, deep beneath the surface, a fearsome new threat is infecting the planet from within. With survivors scattered and civilization in ruins, time is running out for Marcus and his comrades as they fight to save the human race.

* Enthralling cinematic story. Experience the epic finale to the Gears of War trilogy
* Unparalleled gameplay
* One of the definitive multiplayer experiences on Xbox LIVE
* Gears of War 3 pushes the envelope for stunning visuals on Xbox 360