This holiday shopping season has already seen some pretty good discounts from retailers trying to move new game consoles, including Black Friday and Cyber Monday deals bundling up to two free games with a $400 PlayStation 4. Now that those feeding frenzies are over, Sony has jumped in to officially add a bundled game to the $400 PlayStation 4 package for the first time.

As part of Sony's "Four Games, One Pick" promotion, new PS4 systems will now come with a voucher that can be redeemed online to download a copy of either Destiny, Far Cry 4, NBA 2K15, or Little Big Planet 3. The 500GB systems still sell for the same MSRP of $399.99, a price Sony hasn't lowered since the system first went on sale late last year. Sony previously offered a Glacier White PS4 system bundled with Destiny, but that package came at a suggested price of $450. It's unclear how long the free game offer will last.

Further Reading Microsoft cuts Xbox One prices as low as $349 for holiday season

Sony's move comes after Microsoft lowered the price of the Xbox One to $350 (including packages with bundled games) as part of a holiday season promotion running at least through January 3. Prior to that, Microsoft had offered lower prices and free game bundles on Xbox One hardware throughout

At this point, it's hard to say how the $350 price has affected the Xbox One's holiday sales, but market analysis firm Infoscout says Microsoft's system sold roughly two-thirds better than the PS4 on Black Friday based on data from its panel of shoppers. Sony's free game offer could be an indication that it's seeing Microsoft's console make gains on the PS4's worldwide sales advantage through September, or it could just be an unrelated plan to attract more buyers this holiday season. Whatever the case, the continued competition between Sony and Microsoft in this console generation seems to be paying dividends for consumers.