It doesn't take a genius to figure out why Mojang struck gold with Minecraft: it's basically a grown-up version of Legos, only with virtual blocks instead of real ones. And zombies. Prepare for the line between children's toys and grown-up games to get even blurrier in the coming months. After a petition for a Minecraft-themed Lego set garnered over 10,000 e-signatures, Lego considered the prospect in an official review. As of yesterday, Minecraft Legos are officially a go.