Buy Call of Duty: Modern Warfare III Xbox & PC

Before you start looking for a cheap Call of Duty: Modern Warfare III CD Key, take a moment to check the essentials:
- Published by Activision Publishing Inc.
- PC released date: 21 Jul 2025
- Genres: Action

Ready to ride? Set a price alert on XD Deals and grab a discounted Call of Duty: Modern Warfare III Steam key the moment it reaches its next historical low.

No, not right now. Valve marks Call of Duty: Modern Warfare III as Steam Deck Unsupported , so it won't launch via Proton at this time. Keep an eye on XD.deals - we track Proton breakthroughs and community fixes, and we'll flag it the moment there's a working way to play Call of Duty: Modern Warfare III on Steam Deck.

Yes. A Call of Duty: Modern Warfare III Steam version exists. Pick any offer tagged Steam Key on XD.Deals, redeem it in the desktop client, and play Call of Duty: Modern Warfare III on Steam PC.

Yes. Once your Steam key is redeemed, you can launch {0} in Offline Mode via Steam. Your save files will sync the next time you go online.

Yes, you can buy a Call of Duty: Modern Warfare III Steam Key directly on the Steam Store. At XD.Deals, we aggregate all available Steam DRM offers so you can compare cheap Call of Duty: Modern Warfare III steam deals in one place.

You'll find every live sale & discount for Call of Duty: Modern Warfare III right here on XD.Deals. Our price tracker currently lists 3 official-store offers and 0 keyshop deals. Check the table above for the lowest price, compare against the game's historical low, and set a price alert so you never miss the next drop.

With XD.deals, PC gamers can instantly see where to buy a cheap Call of Duty: Modern Warfare III PC Steam key. Our real-time price-comparison engine and curated coupon database track every official store and trusted key-shop so you don’t have to. Right now we detect this game in 3 live offers from stores and keyshops.

Yes. An official Call of Duty: Modern Warfare III Steam store page is live, so you can buy Call of Duty: Modern Warfare III on Steam or buy any Call of Duty: Modern Warfare III PC Steam Key on XD.Deals and redeem it instantly.

No - XD.Deals itself isn't a store. We're a price-comparison service that tracks the best offers for Call of Duty: Modern Warfare III across official stores and verified key-shops. Click "Shop Now" next to the deal you want, and you'll be redirected to the retailer's website to complete your purchase and receive the key there.