Call of Duty: Modern Warfare 3 (2011)
Single-playerCo-op
The best-selling first-person action series of all-time returns with an epic sequel to the multiple GOTY award winner Call of Duty®: Modern Warfare® 2
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Official stores and keyshopsOfficial stores sell the key on behalf of the publisher (Steam, GOG, Humble…). Keyshops are third-party key resellers (Kinguin, Eneba, Instant Gaming…): they cost less but aren't the publisher's store, and support and refunds go through them. Check the key's platform and region and prefer sellers with many reviews. On Linux what matters is that it's a Steam key: the game starts with Proton just like one bought on Steam.
3 stores · updated 12 Nov, 19:39 · lowest first
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Prices in euros, for Europe. Prices updated on 12 November 2026 at 19:39. Price data provided by IsThereAnyDeal. Some links are affiliate links: if you buy through them IncastroPC may earn a small commission, at no extra cost to you.