Cruise ship slot machines are switched on once a ship sailing from Britain is far enough offshore, because the Gambling Act 2005 lifts its main offences for vessels on journeys into international waters. Out there, UK stake caps, prize caps and the Gambling Commission’s protections no longer govern the machines, so the cruise line’s own rules take over.
Section 359 of the Gambling Act 2005 removes the main gambling offences on vessels heading into international waters.
Inside the territorial sea next to Great Britain, UK law applies as it does on land.
UK category limits (£2 on B3, £1 on C) don’t bind a ship’s casino at sea; check the cruise line’s own rules.
Age limits, payments and complaints follow the cruise line’s terms, not UKGC rules, so read them before you sail.
Key law
Gambling Act 2005, s.359
When UK law applies
In port and in the territorial sea
UK stake caps at sea
Do not apply
Who sets the age
The cruise line
UK complaint routes
Not available for play at sea
Help
National Gambling Helpline 0808 8020 133
Why cruise ship slot machines can run outside UK rules
The answer sits in one short section of the Gambling Act 2005. Section 359 says a person does not commit an offence under Parts 3, 4, 10 or 11 of the Act for conduct on board a vessel that is on a journey which has taken it, or is intended to take it, into international waters. Those four Parts cover operating without a licence, the protection of children, gaming machines and lotteries.
The same section adds that, subject to that exemption, the Act applies in the territorial sea adjacent to Great Britain just as it does on land. International waters are defined as the waters outside that territorial sea, which is fixed by the Territorial Sea Act 1987.
Put simply: a cruise ship on an international itinerary can run its casino without a Gambling Commission licence, and its slot machines don’t need to fit the land-based categories. For the rules that do bind every machine on land, see our Gambling Act 2005 and machines page and the where to play hub.
When the casino and slot machines switch on
Cruise lines generally keep the casino closed while the ship is in port and while it is inside territorial waters, then open it once it has passed into open sea. When that happens on any given night depends on the route, the speed of the ship and the line’s own policy, so the daily programme or the casino desk is the place to check.
Foreign ports add another layer. A ship berthed in another country is subject to that country’s rules, and many restrict casino gaming in port. A sailing that hops between nearby ports may have short casino hours, while sea days can see it open for long stretches.
Which rules apply where on a cruise
The table sets out how the legal position changes over the course of a typical sailing from a British port.
Gambling rules at each stage of a cruise from Great Britain
Where the ship is
Which rules apply to the slot machines
What that means for you
Docked in a British port
Gambling Act 2005 in full
No unlicensed machine play; casino normally closed
Inside the territorial sea next to Great Britain
Gambling Act 2005 (s.359(2))
Same as land: casino normally stays closed
In international waters on an international journey
Main Gambling Act offences lifted (s.359(1)); cruise line rules
Casino can open; no UK category limits
Docked in a foreign port
That country’s law
Often closed; depends on the port
River or fixed vessel within Great Britain
Gambling Act 2005; premises licence possible (s.211)
Land-style categories and limits
The last row matters for river cruises and floating venues. Section 211 of the Act lets a premises licence cover a passenger vessel or a vessel at a fixed place in the water, and treats it as located where it is moored. Machines on a vessel like that follow the same categories as anywhere else in Great Britain.
What cruise ship slot machines are like
Because UK categories don’t apply at sea, a ship’s slot floor tends to resemble a casino in the United States more than a British arcade. Expect upright and slant-top video slots, multi-denomination cabinets, linked jackpots across a bank of machines and perhaps video poker. Machines usually pay by printed ticket rather than coins; our explainer on ticket-in, ticket-out shows how that system works.
The cabinets generally come from the international makers that supply land-based casinos; our manufacturers hub profiles several of them. Mechanically they are the same as any video slot machine: a random number generator decides the result as you press spin, and the reels simply show it.
Some features you won’t see on British online slots can turn up at sea, such as higher maximum bets per spin, because the UK’s online and land-based limits don’t reach the ship. That makes it more important to set your own limits.
Stakes, prizes and RTP on cruise ship slot machines
On land in Great Britain, every machine has a legal maximum stake and prize, and categories B1 to C must display a target return to player percentage. At sea none of that is required by UK law. The cruise line, the ship’s flag state and the line’s own gaming policies set the limits.
UK land machines compared with a ship’s casino in international waters
Point
UK land-based machines
Cruise ship slot machines at sea
Maximum stake
£5 on B1, £2 on B3, £1 on C
Set by the cruise line
Maximum prize
£10,000 on B1 (£20,000 linked), £100 on C
Set by the cruise line
RTP display
Required on B1 to C
Not required by UK law; ask
Age
18+ for B and C
Cruise line policy
Card payments
Debit card ban on machines
Often charged to an onboard account
Regulator
Gambling Commission
Not the Gambling Commission
If the machines show a return figure, the same logic applies as anywhere else: it is a long-run average. Spend £100 on 50p spins (200 spins) on a machine returning 90%, and the average cost is £10, but one evening can swing far from that in either direction. Our guide to RTP and the house edge explains why.
Minimum age for cruise ship slot machines
Part 4 of the Gambling Act 2005, which protects children and young people, is one of the Parts that section 359 lifts on a vessel heading into international waters. The minimum gambling age on board is therefore the cruise line’s own policy, which can be 18 or 21 depending on the line and the itinerary.
Read the line’s casino rules before you sail, and expect staff to ask for ID. Under-18s should not be using the casino whatever the line’s policy, and our page on how old you have to be to play slot machines sets out the rules that apply back home.
Paying for slot play on a cruise
Ships usually run on a cashless onboard account linked to a card you registered at check-in. Some cruise casinos let you put slot play on that account. That is convenient, but it removes the natural pause of fetching cash, and the bill only arrives at the end of the voyage.
In Great Britain, gambling with a credit card (opens in a new tab) has been banned since 14 April 2020, and gaming machines can’t take debit card payments directly. Those rules are written for businesses licensed in Great Britain, so they may not protect you on a ship in international waters. If the card on your account is a credit card, it may be possible to gamble on credit at sea. See our credit card ban page for the UK position.
Before sailing, decide a total casino budget for the trip and divide it by the number of evenings.
Ask the casino desk whether slot play can be charged to your account, and whether you can block that.
If possible, play from cash or a ticket bought with a set amount, not open-ended account charges.
Check your onboard statement daily rather than at the end of the cruise.
Big wins, tax and paperwork at sea
Gambling winnings are not taxed for UK players in the UK; our page on slot winnings and tax explains why. A ship registered in another country, or sailing from a foreign port, may be subject to different reporting or withholding rules on large wins, especially on US-based lines or itineraries. If you hit a large jackpot, ask the casino staff what paperwork is involved before you leave the machine.
Large jackpots on cruise ships are usually paid by staff rather than by the machine. Keep any documents you’re given, and ask how the payment will be made: cash, onboard credit or a later transfer.
What happens if something goes wrong
On land, a dispute about a machine goes first to the business and then, for licensed operators, to an approved dispute resolution service. Our page on slot complaints and ADR describes that route. For play in international waters there is no Gambling Commission licence behind the ship’s casino, so those routes don’t apply.
Your options are the cruise line’s complaints process and, depending on the circumstances, the rules of the ship’s flag state or the country where the cruise was sold. Note the machine number, time, and any error message, and report a malfunction to staff straight away.
Staying in control on a cruise
A cruise combines several things that make it easy to overspend: free time, a holiday mood, drinks packages and a casino a few steps from the bar. GAMSTOP (opens in a new tab) covers online gambling sites licensed in Great Britain, not a ship’s casino, so if you have self-excluded online you are not automatically excluded on board. Ask the cruise line whether it offers its own exclusion.
Set a casino budget for the whole trip before you leave home.
Use a fixed amount of cash or a pre-loaded ticket rather than open account charges.
Avoid playing after several drinks; judgement slips first.
If you feel you’re chasing losses, stop for the night.
The National Gambling Helpline is run by GamCare (opens in a new tab) and offers phone, live chat and WhatsApp support 24/7; the phone number is 0808 8020 133. Our signs slot play is a problem guide may help if a trip felt out of control.
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18+. Gambling should be entertainment that costs money, not a way to make it. Decide a budget before you play: plan a slot budget. Free, confidential help: National Gambling Helpline 0808 8020 133.
Frequently asked questions
Why are cruise ship casinos closed in port?
Because the law of the place where the ship is located applies in port and close to shore. For a ship in a British port or in the territorial sea next to Great Britain, the Gambling Act 2005 applies in full, and a ship’s casino doesn’t hold the licences needed to run machines there. Section 359 of the Act only lifts the main offences once the vessel is on a journey into international waters. Foreign ports have their own rules, which often have the same effect. See Gambling Act 2005 and machines and our where to play hub.
How far out does a ship have to be before the slot machines open?
It has to be outside the territorial sea adjacent to Great Britain, which the Gambling Act 2005 defines using the Territorial Sea Act 1987. In practice, the cruise line decides exactly when to open once the ship is clear, and its daily programme or casino staff will confirm the time. Opening also depends on the ship’s route and speed, and on the rules of any foreign waters it passes through. Our playing slots abroad guide covers the foreign side, and UK slot machine rules the domestic side.
Do UK stake limits apply to cruise ship slot machines?
No, not once the ship is in international waters on an international journey. The Gambling Act 2005 lifts its offences relating to gaming machines in that situation, so the British category limits, such as £2 a game on a B3 machine or £1 on a Category C machine, don’t bind the ship. The £5 and £2 online slot limits apply to online casinos licensed in Great Britain, not to a ship’s casino. The cruise line sets its own limits. See UK slot machine categories and what is the maximum stake on a slot machine.
What is the minimum age for slot machines on a cruise ship?
It is set by the cruise line, which can be 18 or 21 depending on the line and the itinerary. The Gambling Act’s protections for children and young people are in Part 4, one of the Parts that section 359 lifts in international waters, so the UK’s 18+ rule for Category B and C machines doesn’t automatically follow you on board. Check the line’s casino terms and expect ID checks. Our page on how old you have to be to play slot machines covers the rules in Great Britain.
Are cruise ship slot machines fair?
They work like any modern video slot, with a random number generator deciding results, but the Gambling Commission does not test or oversee them. A British machine in categories B1 to B3 must be tested by an approved independent test house; a ship’s machines are governed by the cruise line and whatever rules its flag state applies. Some lines publish information about their machines, so ask. Our pages on how machines are tested and whether slot machines are rigged explain what testing involves.
Can I charge slot play to my cruise account?
On some ships you can, because the casino links to the cashless account that also covers drinks and excursions. That account is normally tied to a card you registered at check-in. Great Britain bans gambling on credit cards for licensed businesses, but a ship in international waters isn’t one, so check what card is on file and whether you can block casino charges. Using cash or a fixed-value ticket makes spending easier to track. See our credit card ban page and slot budget planner.
Do I pay tax on a cruise ship slot win?
Not in the UK, because gambling winnings are not taxed for UK players. However, a ship registered abroad or sailing from a foreign port can be subject to other countries’ reporting or withholding rules on large wins, particularly with lines based in the United States. If you land a large jackpot, ask the casino staff what forms are involved before payment and keep copies. For anything unusual, a tax adviser can help. Our slot winnings tax page and what happens when a slot jackpot is won give the background.
Does GAMSTOP stop me playing slot machines on a cruise?
No, GAMSTOP is a self-exclusion scheme for online gambling sites and apps licensed in Great Britain, so it doesn’t reach a ship’s casino. If you’ve self-excluded and are worried about a cruise, contact the cruise line before you travel and ask whether it can bar you from the casino or block casino charges on your account. The National Gambling Helpline on 0808 8020 133 can talk through options. See how do I stop playing slots and help for slot players.
Are river cruise boats in the UK allowed slot machines?
Only under the normal British rules. Section 211 of the Gambling Act 2005 allows a premises licence to cover a passenger vessel or a vessel at a fixed place in the water, treated as located where it is moored. A vessel like that is subject to the same machine categories, age limits and entitlements as land premises, and permits for unlicensed family entertainment centres can’t be issued for vessels. The international waters exemption doesn’t apply on rivers. See machine entitlements and gaming machine categories explained.
How do cruise ship slot machines pay out?
Most pay by printed ticket rather than coins: you collect a barcoded ticket and either cash it at the casino cage or feed it into another machine. Large jackpots are usually paid by staff after checks. Some ships also let winnings return to your onboard account. Ask how the casino handles cash-outs before you play, and keep tickets safe, since they can have expiry rules. Our pages on ticket-in, ticket-out and slot machine tickets explain the system.
Gambling can be addictive. Free, confidential help is available 24 hours a day from the National Gambling Helpline on 0808 8020 133. Visit GamCare.org.uk and GamCare, or block yourself from all UK-licensed gambling sites with GAMSTOP.
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