Call of Duty is finally coming to mobile devices. The Activision first-person shooter has been around for quite some time, with several titles having released over the years, and it appears that it will soon be made available for smartphones and tablets.

The first trailer for the game surfaced on Monday detailing the game, which is called Call of Duty: Mobile. Yes, the game is free; and it promises the "heart-pounding, adrenaline-fueled action of Call of Duty wherever you go."

Call of Duty: Mobile boasts "multiple game modes" and several maps, including popular locations such as Nuketown and Crash. Activision says the game is "optimized for mobile," which should be the case although there's not much clarity in the statement. It probably means the controls, which could be a bit of a cause for concern, given COD's fast-paced, all-action gameplay.

The game isn't directly linked to previous CODs and is said to be a standalone title. However, it includes characters and weapons from the likes of Modern Warfare and Black Ops.

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While it has been created with 'high-end" devices in mind, it is claimed that it's "broadly accessible for as many other devices as well."

Call of Duty: Mobile will be available on both Android and iOS and anyone wishing to get their hands on it can pre-register here. Signing up early hands players the chance to earn in-game rewards and learn about the upcoming beta tests set for later in the year.

Activision had previously announced that a Call of Duty mobile title was in the works for China and was being developed in partnership with Tencent. The latter's studio, Timi, is responsible for the game's creation and it is now being made available to North and South America, Europe and other regions.

Additionally, the trailer seemingly teased a battle royale mode but that's still awaiting confirmation.

Meanwhile, COD's current mainline title is rumored to be set for a campaign mode later this year, with Black Ops 4 having launched without one in 2018. Reports claim that the new game will be called Call of Duty: Modern Warfare 4 and will be developed by Infinity Ward but no confirmation has yet been made on that front either.

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