Living on a cruise for a month in 2026 typically costs between $3,000 and $7,000 per person, though this varies wildly based on the cruise line and cabin type. Budget-conscious travelers can find "back-to-back" sailings on lines like Carnival or MSC for around $100–$150 per day (roughly $3,000–$4,500 a month) in an interior cabin. This price is remarkably efficient as it includes your room, all standard meals, entertainment, and transportation between ports. For a more mid-range experience on Royal Caribbean or Princess, you might pay $5,000–$6,000 for a balcony room. If you choose an ultra-luxury or residential cruise ship like The World or Storylines, the cost can jump to over $15,000 per month. You must also factor in mandatory daily gratuities (usually $450–$600 per month), Wi-Fi packages, and laundry services. For many retirees, this "resort life" is increasingly comparable to the cost of high-end assisted living or luxury apartment rentals in major cities, especially when you consider the lack of utility bills and grocery expenses.