Amazon is currently running a deal on video games where you can Buy One, Get One 40% Off offer on games $19.99 and under like Bioshock 2, Mario Kart 7, The Legend of Zelda: Twilight Princess, Halo 3, Mass Effect 2, Mortal Kombat vs. DC Universe, Call of Duty: Modern Warfare: Reflex, and much more! Add two items to your cart from the main Sale page and the lower-priced item will get 40% off.

There’s over 500 video games to choose from spread out over many pages, so be sure to click through to see all the eligible titles. You can also browse by platform by clicking the links at the top (right below the link for the Terms & Conditions.

There’s no mention of when this sale ends except that it will be running for a “limited time” so get in on this deal while you can.