Progressive jackpot slots are games where a small slice of every stake feeds a prize pool that keeps growing until somebody wins it, then resets to a starting amount. The size of that pool depends on how many players and casinos feed it, which is why a few networked games can pay seven figures while a standalone progressive might top out in the thousands.
Every progressive is paid for by players’ stakes, so the base game returns less than a comparable non-jackpot slot.
Network progressives link many casinos and grow fastest; standalone ones grow only from one game at one site.
An RTP that “includes the jackpot” overstates what most players will actually get back.
A large pot does not mean a win is due; each spin has the same chance whatever the meter shows.
UK stake limits of £5 (or £2 for 18–24s) apply to jackpot games too.
Mega Moolah RTP
88.12%
Divine Fortune RTP
96.59%
Age of the Gods RTP
95.02% incl. jackpot
Pot funded by
A share of each stake
UK tax on wins
None
How progressive jackpot slots grow and reset
Every progressive jackpot has three moving parts: a seed, a contribution and a trigger. The seed is the amount the pot restarts at after a win, funded by the game provider or operator. The contribution is the fraction of each qualifying stake added to the pot. The trigger is the event that awards it, which might be a special bonus game, a set of symbols, or a random selection after any spin.
Between wins, the pot rises steadily as stakes come in. When it drops, the winner takes the displayed amount and the meter falls back to the seed. The maths is set out more fully in how progressive jackpots work, including seeds and contributions.
Nothing about a growing pot makes the next spin more likely to win it. The trigger chance is set by the game’s maths, not by how long it has been since the last winner. Our page on why slots are never due a win explains this further.
Standalone, local and network progressive jackpots
Where a jackpot collects its contributions from decides how big it can get. The same slot can sometimes be run in more than one way, so the jackpot shown at one casino may differ from another.
Structure
Fed by
Typical pot size
Example
Standalone
One game at one casino
Smallest, grows slowly
Some single-site jackpot versions
Local or in-house
Several games at one casino or group
Mid-sized
Operator-branded jackpot bars
Wide-area network
Many casinos linked by the provider
Largest, can reach seven figures
Mega Moolah, Mega Fortune, Age of the Gods
Network jackpots are the ones that make headlines, because thousands of players across many brands feed one pot. The trade-off is that you are competing with all of those players for a single prize, so the chance of any one spin winning the top tier is tiny.
Mini, Minor, Major, Mega: why progressives come in tiers
Most modern progressives offer several jackpots at once. Mega Moolah has four tiers awarded through a wheel bonus, Divine Fortune has three, and Playtech’s Age of the Gods family runs a four-level Power jackpot with Ultimate Power at the top. The smaller tiers drop often enough that players see them won regularly; the top tier is the rare one.
Tiers matter because the contribution from each stake is split between them. A share keeps the small pots ticking over, and a share builds the big one. When you read about a game’s “jackpot”, check which tier is meant: a Mini paying £10 to £20 is a pleasant bonus, not a life event, and it is far more likely than the headline figure.
Best-known progressive jackpot slots in the UK
These are the progressive games UK players most often search for. RTP figures are the developer’s published numbers; where the figure includes the jackpot contribution, that is shown.
Mega Moolah’s 88.12% is the clearest example of the jackpot trade-off: roughly eight points below a typical modern slot, because so much of each stake goes into the network pots. For a side-by-side look at the two most famous networks, see Mega Moolah vs Mega Fortune.
Reading an RTP that includes the jackpot
When a game says its RTP “includes the jackpot contribution”, the figure assumes the jackpot is eventually paid to someone. Over millions of spins across a network that is true, but for an individual player who never wins the top tier, the return actually experienced comes only from the base game and the smaller tiers.
A hypothetical example makes this concrete. Suppose a game quotes 95% including jackpots, and three percentage points of that go into the pots. A player who never touches a jackpot is effectively playing a 92% slot. Over £200 of total stakes, that is an expected cost of about £16 rather than £10. The real split varies by game and is not always published, but the direction is always the same.
Our RTP explainer covers how developers calculate these figures, and the FAQ below weighs up the cost of chasing a pot.
Does your stake change your chance of the jackpot?
On many progressives, yes. Some games weight the jackpot trigger by stake, so a 50p spin has a better chance of reaching the jackpot feature than a 10p spin, though both chances remain small. Others give every qualifying spin the same chance, and a few older designs only make the top prize available at certain stake levels. Mega Joker is the classic case of stake mattering: its highest return depends on playing the Supermeter mode at the top stake.
Higher stakes never change the house edge in your favour. If the trigger is weighted, you pay proportionally more for the extra chance. Under UK rules the most you can stake is £5 a spin at 25 and over and £2 at 18 to 24, and our guide to stake limits explains how those caps apply.
How to check a progressive jackpot slot before you play
Open the game’s help screen and find the RTP. Note whether it says the figure includes the jackpot.
Look for the jackpot rules: how the jackpot is triggered and whether stake size affects the chance.
Check how many tiers there are and the seed amount each restarts at.
See whether the jackpot is networked or local; the rules or the casino’s jackpot page usually says.
Set a session budget that treats the jackpot as a bonus, not a target, and use your deposit limit.
If you win a large amount, expect the casino to run identity checks before paying.
Our slot budget guide has a simple method for deciding how much a session should cost before you start.
Studios and networks behind UK progressive jackpots
A handful of providers run the large networks. Games Global operates the Mega Moolah family, which it took over with Microgaming’s portfolio in 2022. NetEnt runs Mega Fortune, Hall of Gods and Divine Fortune. Playtech is known for Age of the Gods and its other branded jackpots. Blueprint Gaming runs Jackpot King, a progressive bolted onto many of its own titles, and Relax Gaming launched its Dream Drop network in 2022.
Not every jackpot is progressive. A fixed jackpot pays a set multiple of your stake, as in Wolf Gold, and a must-drop pot has a deadline or ceiling. Those are covered on our daily jackpot slots page.
What happens if you win a progressive jackpot
A jackpot win is credited like any other win, though large amounts can take longer to clear. Expect the casino to confirm your identity, check that the account is yours and verify the payment method before it releases funds. The jackpot is usually funded by the network provider rather than the individual casino, which can add a step.
Gambling winnings are not taxed in the UK, so a jackpot is paid in full. If you do land a large amount, it is sensible to withdraw it promptly rather than leave it in your balance; UK casinos are not allowed to let you reverse a withdrawal to carry on playing. Our page on whether slot winnings are taxed has the details.
Where to play progressive jackpot slots
The five casinos we work with are all UKGC-licensed, and their lobbies hold thousands of games; search for a jackpot title and check its rules screen before you stake. Ladbrokes gives new customers up to 500 spins, 50 a day for 10 days, after £10 of slots play (18+, 10p spins on selected games, no wagering, T&Cs apply), and Coral gives 100 spins after a £10 slots bet on the same 10p, no-wagering basis.
Ladbrokes and Coral spins are 10p spins on selected slots named in each offer’s terms, which may not include progressive jackpot games. 18+, new customers, £10 slots spend required, T&Cs apply.
Coral and Ladbrokes are both run by LC International Limited (Entain). If you already hold an account with one Entain brand, you may not be able to open a new account with another; check the terms before signing up.
Significant terms: 18+. New customers only, from 14/11/25 until further notice. Certain deposit methods excluded. Deposit and spend £10+ on slots for 50 free spins a day during the first 10 days after first deposit and registration (max 500, £0.10 each, selected games, claim before 23:59 each day, valid 7 days). No wagering. Prepaid cards, PayPal, Paysafe, Neteller, Skrill and Moneybookers deposits do not qualify. Restrictions and T&Cs apply. GamCare.org.uk
Read the Ladbrokes reviewLicence: LC International Limited, UKGC account 54743. Offer checked 5 October 2026.
Significant terms: 18+. New players only. Offer runs 01/10/2026 to 01/02/2027. Deposit (certain types excluded) and bet £10+ on slot games to get 100 free spins (selected games, £0.10 each, 48 hrs to accept, valid 7 days). No wagering on free spin winnings. Deposits by Neteller, PayPal, Paysafe, Skrill, prepaid cards and certain debit cards do not qualify. Restrictions and T&Cs apply. GamCare.org.uk
Read the Coral reviewLicence: LC International Limited, UKGC account 54743. Offer checked 5 October 2026.
18+. Gambling should be entertainment that costs money, not a way to make it. Set a deposit limit before you play: how to set limits. Free, confidential help: National Gambling Helpline 0808 8020 133.
Frequently asked questions
What is a progressive jackpot slot?
A progressive jackpot slot is a game whose top prize grows with every qualifying stake until someone wins it. A small percentage of each bet is added to the pot, which then resets to a seed amount after a win. Some progressives run at one casino only, while networked games link many casinos to build much larger prizes. The best-known UK examples include Mega Moolah, Mega Fortune and Age of the Gods. Our glossary entry on the progressive jackpot gives a quick definition.
Which progressive jackpot slot has the best RTP?
Among the well-known progressives, NetEnt’s Divine Fortune lists a 96.59% RTP, and Mega Fortune quotes about 96% to 96.6% including its jackpots. Mega Joker can reach 99%, but only at the top stake in its Supermeter mode. Mega Moolah sits at 88.12%, the lowest of the famous network games, because so much of each stake feeds its pots. Always check the help screen, as casinos can run lower versions. Our high RTP slots page lists non-jackpot games with higher returns.
Are progressive jackpots ever due to drop?
No, a true progressive jackpot is never due. Each spin has the chance set by the game’s maths, regardless of how big the pot has grown or how long ago it was last won. A large figure simply means many stakes have been added since the last win. Must-drop jackpots are different because they have a deadline or ceiling built in, but standard progressives have no such limit. The design difference is set out in how must-drop jackpots work.
How do you trigger a progressive jackpot?
It depends on the game, and the rules screen sets it out. Mega Moolah awards its jackpots through a randomly triggered wheel bonus. Divine Fortune sends players to a separate jackpot bonus game. Some older games pay the top prize for a particular symbol combination on a payline, and others select a winner at random after any spin. On many progressives, a larger stake raises the chance of the trigger. Our guide to how slot features trigger explains the general approach.
Is the biggest progressive jackpot the best to play?
Not necessarily. The biggest pots are on wide-area networks shared by many casinos, which means far more players are competing for one prize and the chance per spin is very small. Those games also tend to have lower base-game returns. A smaller progressive or a game with fixed jackpots may give a better-balanced session. Choosing comes down to whether you value a tiny shot at a very large prize over a longer session. Our page on are jackpot slots worth it weighs it up.
Can you play progressive jackpot slots with free spins?
Usually not. Welcome spins are normally restricted to named games, and progressive jackpot slots are often excluded because the spin value is fixed and contributions to network pots work differently. Our partner offers are limited to selected slots listed in each offer’s terms, so check the eligible games before claiming. Some casinos run separate jackpot promotions for existing customers, with their own terms. Our jackpot free spins page explains what to look for, 18+ and terms apply.
Do progressive jackpot wins get paid in one go?
Most online progressive jackpots are paid as a single sum once the casino has completed its checks, though the exact method depends on the network’s rules. Before paying a large win, the casino will usually confirm your identity, your address and the payment method you are withdrawing to. That can take longer than a normal withdrawal. UK players pay no tax on gambling winnings. Our guide to withdrawing slot winnings explains the usual verification steps.
Why is Mega Moolah’s RTP so low?
Mega Moolah’s 88.12% RTP is low because a large share of every stake goes into its four jackpot pots, especially the top Mega tier, which restarts at a very large seed amount. That money is still returned to players, but mostly to a very small number of jackpot winners. For everyone else, the base game and smaller tiers return less than a standard slot. It is the clearest example of the cost of a network jackpot. Our Mega Moolah review covers the game in full.
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