Superstore retail chain Walmart will begin selling used video games on Nov. 3. The store began accepting trade-ins on March 26 this year, allowing gamers to earn gift cards to spend at Walmart stores or Sam’s Club locations.

Though used games were already available on the store's website, some of Walmart’s 1,700 U.S. stores will sell preowned titles in just a few days. The merchant is also offering a special deal. Any trade-ins made on Nov. 3 or Nov. 4 will earn traders 50 percent more credit when they purchase “Call of Duty: Advanced Warfare.” Any game traded in to purchase Sony’s PlayStation 4 will also earn double trade-in credit.

This means heavy competition GameStop, the Grapevine, Texas-based video game retailer, which currently operates 6,457 retail stores throughout the U.S., Canada, Australia, New Zealand and Europe. But GameStop President Tony Bartel isn’t worried.

"Target, Walmart, Best Buy, Amazon -- they've all tried or are trying used games," Bartel told Bloomberg on Tuesday. "Frankly, when someone comes, it helps us, because it raises awareness that you can turn in video games. And we have the lion's share of the market."

Bartel added that the trading, buying and selling of video games isn’t a simple task and that if Walmart does it incorrectly, the company could get stuck with leftover inventory.