GameStop makes things easier for anyone who's looking into upgrading from the PS3 or Xbox 360 to the next-generation Xbox One for $200.

Here's how the bargain works: Customers will get $100 worth of store credit when they trade in their PS3 or Xbox 360 and use it toward a new Xbox One.

Sounds simple enough, right? Well, there's a criteria that needs to be met too. To get in on the deal, customers have to bring in a slim 320 GB or higher model of either of the consoles. On top of that, it needs to still be in working condition, but if that's not possible, the retailer will still accept it for a lower trade value. Those points don't exactly complicate things, but at any rate, they make them a tad more complex than just chucking out any PS3 or Xbox 360 on the counter and dishing out 200 bucks.

As for how the Xbox One boils down to $200, Microsoft started its Spring Sale just recently, offering the console in question for $300. To put two and two together, $300 minus $100 because of GameStop's store credit equals $200 — yep, the math checks out.

However, anyone interested in partaking on the deal better act quickly because GameStop is only going to run this until April 3, not to mention that Microsoft didn't say when the Xbox One will go back to its original $350 price.

To get in on the action, just head over to the GameStop website and find a store nearby.

Trade in a slim model #Xbox360 or PS3 at @GameStop and get $100 credit toward a new #XboxOne https://t.co/tBlGTjzEr0 pic.twitter.com/9f3ffwBvUw

— Xbox (@Xbox) March 24, 2016

While we're on the topic of Xbox One, we have a complete list that consists of some of the biggest games that's coming to it, including Quantum Break, Halo Wars 2, Sea of Thieves, Below, Crackdown 3 and many others.