For a limited time, save $20 on the Gears Of War 3 standard edition video game for Xbox 360. The game is selling at Amazon right now for $39.99 (that’s 33% off the list price of $59.99).

From the product page:

• 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

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.