Deadline first reported on the deal, and Minecraft creator Markus 'Notch' Persson confirmed it with a tweet. According to the report, Roy Lee (producer for The Lego Movie) is attached to produce this block-based adaptation as well. Jill Messick (Mean Girls) is said to be producing in some capacity too. Minecraft may not have much of a plot, but then neither does Lego and that movie still worked out pretty well.
It's important to note that acquiring the film rights is only the first step to active production, and even movies that are fast-tracked tend to take a couple of years to complete, and can still be cancelled. This is just the start of the process, so it may be some time before we actually see Creepers on the silver screen.