“Can you teleport me?” “How do I fly?” “I need a sword.” “What are you building?” These eclectic exclamations are the sounds of a room full of teens playing Minecraft (www.minecraft.net). We play every other Wednesday in Chicopee (MA) Public Library’s computer lab, often filling all ten computers, and are occasionally joined by teens playing from home. They play freely, building whatever suits their fancies. As I’ve watched these teens discover skills in the game, I’ve been thinking about Minecraft’s potential for both structured and unstructured activities.