Playing blackjack on a casino cruise can be fun and relaxed, but it might offer less favorable rules and higher house edges compared to land-based casinos. While the atmosphere is more casual and entertaining, you may encounter stricter rules or fewer deck options. If you're looking for serious blackjack play, a land-based casino might be a better choice, but if you’re on vacation and just want some fun, a cruise casino could be a great way to enjoy the game.