Minecraft NPC mods are grand, but most NPCs are fairly self absorbed types that either steal your treasure, think of nothing but cooking pork chops or swim in lava at their earliest convenience. Not many of them are what you might call genuinely useful. They’re more Wilson to your Tom Hanks than Sancho Panza to your Don Quixote. But the Castle Defenders NPC Mod is different. It introduces three new NPCs who do nothing but defend you and what’s yours with the sort of blind loyalty usually reserved for dogs.