A jackpot is an event, and an event is not a plan

The distinction in the heading above is the whole of this page, and the figures behind it sit on this site rather than in a leaflet: a "progressive" jackpot is the one prize in a casino whose rarity can be counted from the outside, and counting it is more use than any warning we could write.

A top jackpot is not a prize that arrives on a schedule: it is a single event, drawn from a "pool" (a fund shared by a hundred houses at once, in four currencies), and the record of when it has actually fallen (level by level, with dates) is the only honest description of how rare it is.

Hall of Gods has paid its "Mega" (the top of its three levels) about once every thirty-nine weeks, which is its average "interval" and not its promise. The Betsson pool on Arabian Nights has gone roughly eighteen months between wins; King Cashalot has averaged about two and a half years (and has not paid at all since 2017), and one Playtech pool ("Thai Temple", which is a network in name only by now) has fallen once in eleven years.

Those are averages taken across every player on the network together (tens of thousands of them, in the larger pools), and for any single person the figure is therefore not a waiting time and never was.

What the intervals on these pages say about a bankroll

The mechanism has an uncomfortable half. A reader who has followed it this far will already have met that half without being told.

The "contribution" (the slice of every stake that goes into the pool) is taken whether the jackpot round ever appears or not, and it comes out of the game's own "return to player" (the share of stakes a game gives back over time) rather than out of the house's margin, so a player who does not win the top level, which is practically everybody, is playing a slot whose real return sits well below the "headline" figure printed on it.

On the worst titles of one large network that gap is more than five points of return, and seven points of return separate the best title from the worst inside the very same jackpot (88.12 per cent against 81.63 on the base game): a reader choosing between two games that chase the identical prize is choosing between two quite different slots.

The second uncomfortable fact is about the games of the nineties, which anybody can still open today. On several of them the jackpot requires a "qualifying stake" (a minimum below which the prize is simply unavailable) or a win on one named line, and the contribution is taken all the same, so a stake under the threshold pays into a prize it cannot win under any circumstance. It is the oldest piece of unfairness in the business ("legacy" is the kind word for it), and it is still running today.

One trap is left, and it is the one that catches careful people. A counter standing far above the average of everything its game has ever paid looks, to a reasonable eye, like value; but the chance of the next spin has not moved by a hair, no pot is ever "due", and the "break-even" counter (the figure above which the bet turns in the player's favour) cannot be worked out at all without the probability of the jackpot, which nobody publishes.

The only game where the arithmetic has been done in public is the Caribbean Stud side bet, and there the break-even counter runs from $29,491 to $425,380 depending on which paytable the table uses, which is a factor of fourteen on the same $1 bet. No rule of the form "above a million it is worth playing" survives a spread of that width, and anybody selling one is selling a "strategy" built on a figure nobody has.

None of this argues that a jackpot slot is a bad way to spend an evening, and we would be writing nonsense if we pretended otherwise. It argues for the opposite: the money has a known cost, the cost can be worked out in advance, and the five minutes of arithmetic are better spent before the first spin than after the last.

The tools, and the order to use them in

Every casino holding a licence worth the name has to give a player four things, and all four of them work best set up before the first deposit (which is to say, at the moment of signing up) rather than in the middle of a bad night. We describe them here because the pages on this site send readers to operators, and an operator link without the tools beside it is half a sentence.

• Deposit limits, by day, by week or by month, which take effect at once when they are lowered and only after a delay when they are raised. This is the one tool that does most of the work.
• Loss limits and session limits, which end the session when a figure is reached rather than when the player decides to stop.
• Reality checks, a message on screen at a chosen interval, saying how long the session has run and what it has cost so far.
• Cooling-off on a raised limit, which is the delay a licensed operator has to apply before a higher figure takes effect.
• Time-out, a short break of a day to six weeks, and then self-exclusion, which is the serious instrument, and it has its own section below.

A player with the patience for one number rather than four should set the deposit limit, the only one of the four binding before the money reaches the account (the other three act afterwards, when the "session" is already under way). Everything else operates after the fact. Set it low.

Where to find help, by market

Every address and number below was checked on 19 October 2026 (one of them had moved, and the dead address is not reproduced here) and answered on the day. They are free, they are confidential, and not one of them has any connection with this site or with any operator named on it; where a service has moved we give the address it has moved to, because a help link that leads nowhere is worse than no link at all.

Great Britain

• National Gambling Helpline, 0808 8020 133, free and confidential, twenty-four hours a day, every day of the year, run by GamCare (England and Scotland); live chat and WhatsApp at gamcare.org.uk.
• NHS Wales gambling helpline, 0808 2819 265, around the clock, with self-referral to the All Wales Gambling Treatment Service on 0300 0859 464.
• GambleAware, gambleaware.org, for local services by postcode, advice for family and friends, and the harms assessment. The site also answers at begambleaware.org.
• GAMSTOP, gamstop.co.uk, the free register that blocks every operator licensed in Great Britain at once.

Ontario

• ConnexOntario, 1-866-531-2600, free and confidential, twenty-four hours a day, at connexontario.ca.
• BetGuard, betguard.ca, the central self-exclusion scheme for the registered Ontario market, in place since May 2026.
• Play in Ontario is for people aged nineteen or over, which is stricter than the eighteen this site applies everywhere else.

Alberta

• 211 Alberta, dial 211, or ab.211.ca, which routes to addiction and mental health services across the province.
• GameSense, gamesenseab.ca, 1-833-447-7523, the provincial programme of the AGLC.
• Alberta Health Services addiction helpline, 1-866-332-2322, around the clock.
• Self-exclusion through the AGLC, at selfexclusion.ca or aglc.ca/self-exclusion, 1-844-468-8034.
• Play in Alberta is for people aged eighteen or over, the market having opened on 13 July 2026.

The United States

• National Problem Gambling Helpline, 1-800-MY-RESET (1-800-697-3738), by call or text, with chat at ncpgambling.org, adopted by the National Council on Problem Gambling on 29 January 2026.
• 1-800-GAMBLER is not the national number: it is the helpline of the Council on Compulsive Gambling of New Jersey, and it is the formula New Jersey law requires in casino advertising there.
• Self-exclusion in the United States is arranged state by state, through the regulator of the state the player is in.

Québec

• Jeu : aide et référence, 1 800 461-0140, at aidejeu.ca, free, confidential and around the clock, in French and in English (aidejeu.ca carries the chat).

Australia

• National Gambling Helpline, 1800 858 858, free and confidential, twenty-four hours a day.
• Gambling Help Online, gamblinghelponline.org.au, for chat, email and self-help material.
• BetStop, the national self-exclusion register, which covers licensed wagering services and not online casinos.

Self-exclusion, and the part that is usually left out

"Self-exclusion" is a register rather than a "promise", and its whole value lies in the fact that it does not depend on the player keeping a resolution on a bad evening. A request made to GAMSTOP closes every account held with an operator licensed in Great Britain, for six months, a year or five years, and it cannot be lifted early (that is the feature rather than the flaw). BetGuard does the same across the registered market of Ontario, and the AGLC scheme covers Alberta.

What none of them covers is the part that matters on a site like this one: a register reaches the operators inside its own jurisdiction, so an account opened with a house licensed somewhere else is untouched by it, and the operators named on these pages address the international market rather than any single national one.

A reader who has excluded in one market and then meets the same games at an offshore address has not failed at anything; the register simply does not reach that far.

Two measures do reach that far, and both of them are free: blocking software on the device itself (Gamban and BetBlocker are the two names usually given), and the "gambling block" that most retail banks now apply to card transactions on request. If you set one thing today, set the block at your bank, because it works whatever licence the next site holds.

We are an affiliate site, we are paid by some of the operators we describe, and that is precisely why this page carries no operator link, no card and no button of any kind. A page about harm with an offer sitting beside it is an advertisement wearing a borrowed coat!

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