The similarities between Rooms — a simple, charming game for iOS and the web where you design rooms — and Minecraft are easy to spot. Both share a blocky visual style and a design-your-own-retreat objective. But describing Rooms as a scaled-down Minecraft for people over the age of 12 doesn’t give it enough credit. It’s good, old-fashioned building in the vein of Lego, The Sims, and Animal Crossing. Rooms builds on the time-honored tradition with a dose of coziness and creativity…