Yes, living on a cruise ship is a viable lifestyle in 2026, either through long-term bookings or dedicated residential ships. Some retirees choose to "stack" back-to-back cruises on traditional lines like Royal Caribbean or Princess, often finding it comparable in cost to assisted living once laundry and meals are factored in. However, the most formal way to live at sea is through residential cruise ships like The World or the newer Storylines vessel, where residents actually purchase their "apartments." These ships travel the globe indefinitely, allowing owners to wake up in a new country every few days while enjoying a permanent home base with a library, medical center, and post office. While the initial buy-in for a permanent cabin can range from $600,000 to several million dollars, plus monthly "HOA" fees for fuel and food, it remains the ultimate dream for those seeking a nomadic but luxurious permanent residence on the water.