Attention, mobile game developers: Here’s your new mark to beat.

Angry Birds maker Rovio today announced that “Angry Birds Space” reached 50 million downloads in its first 35 days on the market, making it the fastest-growing mobile game in history, according to the company.

In addition to capitalizing on the popularity of its predecessors, and getting buzz from that stunt at Seattle’s Space Needle, the game benefitted from a simultaneous launch on iOS, Android, Windows PCs and Macs.

Just imagine if they’d launched on Windows Phone, too!

OK, seriously, it’s an impressive result that underscores the rise of games on mobile devices and social networks, as the traditional game console industry slumps.

With companies like Rovio and Zynga making their mark on those growing platforms, how long can Nintendo hold out?

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