Why Cruise Slots Do Not Publish Their RTP
Last reviewed: October 2026
No cruise line publishes slot payback, and no regulator makes them. Cruise casinos operate in international waters, outside the minimum payback percentages and disclosure rules that land jurisdictions impose. Our four public readings landed between 83.3% and 90.1%, pooling to roughly 88%, which is a few points below Nevada, not the double digit chasm folklore claims.
The regulatory reason, plainly
A slot machine in a Nevada casino sits inside a licensing regime that sets a floor on payback and requires reporting to a state gaming board. Nevada’s statewide slot hold averaged 7.1% in 2025, about 93% returned, per the UNLV Center for Gaming Research. That number exists because a regulator collects it.
A slot machine on a ship in international waters sits inside no such regime. There is no minimum payback, no filing requirement, and no agency to publish an aggregate. The cruise line is not hiding a number it is required to disclose. There is no requirement in the first place.
That distinction matters because it also explains the variation. The same game title ships in several RTP configurations, and the operator picks one at purchase. On land the regulator’s floor bounds that choice. At sea nothing does.
What we actually measured
Four public readings, documented in full in our measured cruise slot RTP research:
| Source | Reading |
|---|---|
| Lifetime machine meter, Icon of the Seas | 90.1% |
| Lifetime machine meter, second ship | 87.1% |
| Lifetime machine meter, Liberty of the Seas | 83.3% |
| Factory setup screen, configured range | 86.9% to 90.9% |
Pooled, those sit at roughly 88%. Against Nevada’s approximately 93%, the cruise gap is about five points. Folklore that puts cruise slots at 80% to 85% is not supported by any reading we hold.
The sharpest finding: same game, different ship
Huff N’ More Puff measured 90.1% on Icon of the Seas and 83.3% on Liberty of the Seas. Identical game title, 6.8 percentage points apart.
That spread is larger than the gap between the cruise average and Nevada. It means “cruise slots” is not a single payback number at all. Which ship you are on, and which cabinet you sit at, can matter more than which cruise line you booked.
From the seat you cannot tell. The configured RTP is not displayed, the game looks the same, plays the same and sounds the same at 83% as at 90%. See slot RTP and volatility for why short-run results reveal almost nothing about configuration.
What a lifetime meter reading is and is not
A lifetime meter reports coin-in and coin-out accumulated since the machine’s counters were last cleared. Over millions of spins that converges close to the configured RTP, which makes it the best available window into a machine nobody will tell you about.
The limits are real. A meter is one machine, not a floor average. Four readings are four machines out of thousands at sea. And we do not know how these particular cabinets were selected. We publish these numbers because they are visible in sources we hold, not because they settle the question.
How to act on this
You cannot shop for RTP at sea, so the useful moves are elsewhere. Slots are the fastest point earners on the ship, and if points are the goal, that is what you are buying. If low cost per hour is the goal, the table floor is a better answer than any slot: craps odds bets carry zero house edge wherever offered, and a good 3:2 blackjack game runs about 0.5%. Compare that to roughly 12% hold on a cruise slot.
The honest summary: cruise slots are worse than land slots by a few points, worse than good table games by a lot, and unknowable at the individual machine. The cruise disclosure scorecard tracks which lines publish what.
What is not known
Everything about individual machine configuration. We do not know each line’s target hold, whether it varies by ship class or itinerary, or whether newer ships run looser than older ones. The Icon versus Liberty split hints at a newer-ship pattern, but two data points are not a trend, and we will not present it as one.
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