Minecraft wiki entry for Hiding_chests, associated text: Build a room or a house full of trapped chests, all hooked up to deadly traps. You could then memorize the location of the "real" chest, which contains all your goodies and won't brutally murder you -- or you could do like a real shell game, make all of the choices the "wrong" one, and hide your valuables somewhere else entirely. Make sure to surround the chests with wooden pressure plates, so nobody thinks they'll get away with just breaking the chests instead of opening them (as breaking the chest will cause all items inside it to drop as items and trigger the pressure plates). Another way to ensure that players don't just break the chests is to put observers observing all the chest blocks, and connect them to a deadly trap. That way, if the chest block is broken, the trap will trigger and the player trying to steal your stuff will fall into the deadly trap.