MapsTD isn’t a spectacular tower defense game but it slots into a category of interactive jollies that I find it hard to resist. The key is in the name – MapsTD integrates with Google Maps so that players can defend any location in the world. There are some recommended locations but the real pleasure comes from typing in the address of an old school, workplace or home. Maybe even your favourite pub or cafe. Enemies approach along roads, meaning it’s simple to pick an easily secured location, but even well-placed forts become difficult when all four routes open up. The paths that will become active in later rounds are marked from the start, allowing for advance planning.