Are you really into trading off your old video games to purchase upcoming titles like Assassin’s Creed Syndicate and Microsoft’s Halo 5: Guardians? GameStop wants you to trade in your old Xbox One or PlayStation 4 games toward the purchase of a new game. When you do the company will slash 10% off the price of the new game you’re purchasing.

A flyer picked up by an enterprising reader of The En spills the details. When shoppers trade-in any Xbox One or PlayStation 4 game they’ll get 10% off the price of Yoshi’s Woolly World, Zelda TriForce Heroes, Assassin’s Creed Syndicate, Halo 5: Guardians and WWE 2K16. Besides the savings, users get to apply the trade-in value of the game they’re giving up to their purchase too. Catch is, gamers must make the trade on each game’s release night or the day after. The retailer promises to give users at least $30 in trade-in value if they trade in these games within a month of their release too.

Interestingly enough, GameStop also has a deal for users who trade in their old Xbox One controllers to finance the Halo 5: Guardians inspired Master Chief and Locke wireless controllers. It’ll give users $35 in credit, guaranteed.