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Microsoft's $2.5B bet on 'Minecraft' a boost for mobile?

"Minecraft" is the top paid app on iOS and Android devices and as of Monday, Microsoft announced it will buy the app's developer Mojang for $2.5 billion.

Microsoft will continue to make "Minecraft" available across platforms, including iOS, Android, PlayStation, Xbox and PC.

A still from Minecraft
Source: Minecraft | Facebook
A still from Minecraft

"Over time, you're going to see them try to leverage this asset to get people to come over to Windows phone, which only has less than 3 percent market share," said Mark Spoonauer, editor-in-chief at Tom's Guide.

Read MoreWhy Microsoft is buying 'Minecraft'

Mojang has a loyal and largely young following, and has more than 100 million players, which will now belong to Microsoft.

"Long term, I think it could pay off if they execute," Spoonauer said.

Microsoft is primarily known for business software but this acquisition will help the company expand its gaming division, which also includes game franchises such as the "Halo" shooter game and "Forza" racing game.

By CNBC's Christina Medici Scolaro