Ever wanted to be the kind of villain with an underground lair, a maze of traps, and a small army of guards on the payroll? Spyworld hands you the graph paper and lets you build it. It's a flip-and-write in two halves: first you draw out your secret base — walls, pitfalls, sentries, hidden treasure — while training an agent slick enough to break into someone else's. Then everybody infiltrates at once, sneaking through a rival's lair to swipe as much loot as they can before the alarms go off. Secret objectives, one-use gadgets, and boards that get meaner as you level up keep every game tense and a little different. It plays in about half an hour, scales from a one-on-one duel all the way up to a staggering 99 players, and it's approachable enough that an 8-year-old can plot world domination right alongside the grown-ups.