It's absolutely fine for a character to own a castle, especially if they have delusions of royalty, but some take it too far. This isn't just a large castle. This thing is absolutely ENORMOUS and usually sprawls hundreds of acres and is filled with traps, guards, Secret Passages, hidden rooms, Elite Mooks and at least one throne room in the center. Bonus points for a moat made of lava, or if it's floating in the sky. Or both. These are often the lairs of the Big Bad, but heroes often have Big Fancy Castles of their own especially if they're royalty. Examples of Big Fancy Castle include: