Progressive jackpot slots like Jackpot King have gained attention in the UK for offering players the chance to land large payouts from relatively small stakes. If you’re new to online slots, you might not be sure how these
types of games work or what “progressive jackpot” even means. This blog will help break that down in simple terms.
We’ll look at how Jackpot King slots work, how often someone wins, and some examples of real people who have won in the past. We’ll also explain what happens when the jackpot is triggered and how the outcome is determined. Whether you’ve played slots before, or you’re just curious about them, this guide is designed to be clear and easy to follow.
Jackpot King Winners
The Jackpot King prize pool has produced a number of large wins over the years, making headlines from time to time when players land particularly large jackpots.
In January 2023, a UK-based player named Michael Clark won £5.4 million from a £1.40 spin while playing King Kong Cashpots Jackpot King at Betfred. The win was publicly confirmed and is one of the biggest recorded wins in this particular jackpot network. He was playing online using a standard account, proving that high stakes are not a requirement for large payouts.
A previous notable win happened in April 2021, when a PokerStars Casino player won just over €8.1 million (around £7.1 million) while playing Deal or No Deal Megaways Jackpot King. What stood out was that the player placed a bet of just €0.80, showing how even low-stake bets can qualify for jackpot wins.
While not all jackpot wins are made public, many are reported by the operators or software providers when the amount is particularly high. Each win is verified before it is paid out, and payouts are processed through the operator the player used.
Has Jackpot King Ever Been Won?
Yes, the Jackpot King system has been won multiple times since its introduction by Blueprint Gaming, a well-known UK game developer licensed by the UK Gambling Commission (UKGC). These wins are possible because 
the jackpot is progressive—meaning the total grows every time someone plays a game within the Jackpot King network.
There isn’t a specific game you need to play, either. Jackpot King is connected to a series of Blueprint slots, including titles like Genie Jackpots, The Goonies, and King Kong Cashpots. Each time someone spins on one of these, a small portion of their stake goes into the shared jackpot pool.
These jackpots can remain unclaimed for months and build up significantly before someone wins. The exact timing of when the jackpot is won is unknown and cannot be predicted. This is because all Blueprint slots use a Random Number Generator (RNG) to determine each spin, making it a game of chance, not skill.
What Are The Odds of Winning Jackpot King?
There are no published odds for winning the Jackpot King jackpot because it's a random event. Blueprint Gaming has not shared specific odds or probabilities. That said, independent experts have estimated that the jackpot might drop roughly once every 50 million to 600 million spins. This figure is based on statistical modelling, not actual data from Blueprint, and should not be seen as a promise of when the jackpot might be hit.
The chance of triggering the jackpot feature itself is low, and even after it is triggered, there's no guarantee it will result in the highest possible prize. Most Jackpot King games feature several prize levels, such as the Royal Pot, Regal Pot, and the top-tier Jackpot King.
The game selects outcomes using an RNG, meaning every spin is independent. Previous results have no impact on future spins. There is no method or strategy that can influence the outcome.
How Often Is Jackpot King Won?
There’s no set time frame for when Jackpot King may be won. It doesn’t pay out on a schedule and isn’t triggered based on how long it’s been running. Because the jackpot is progressive and based on random chance, it could be hit after a few weeks or take several months.
What does affect the timing, to some extent, is how many people are playing. However, the outcome is still based on chance, not volume.
Blueprint Gaming or partner casinos usually confirm big wins publicly, but not all smaller wins are announced. The key thing to remember is that the game is random and there's no way of knowing when it will next be won.
Jackpot King Wins: When Was It Last Won?
The most recent publicly known big win from the Jackpot King network, as previously mentioned, was in January 2023, when Michael Clark landed a £5.4 million payout from a relatively modest £1.40 stake on King Kong Cashpots. This took place at Betfred, a UK-licensed bookmaker and casino operator. The win was confirmed by Betfred in a press release and received national media coverage.
Before that, the record win was in April 2021, where the jackpot paid out over €8.1 million via PokerStars Casino. These are confirmed examples, but it’s possible other jackpots have been won since, especially for lower potential prize tiers within the Jackpot King structure. However, without official announcements, details may remain private.
To find the most recent winners, you can check the latest news sections of UKGC-licensed casino sites or Blueprint Gaming’s official communications, where they sometimes showcase larger jackpot wins.
What Happens When You Get Jackpot King?
When you hit the required number of Jackpot King symbols—usually five during a single spin—you’re taken into a separate bonus feature. This feature acts as a mini-game. It works slightly differently across titles, but generally follows the same structure.
You’ll be shown a new set of reels with special symbols. Each spin may offer you the chance to collect crowns, unlock one of the three progressive jackpots, or move to the final Wheel King bonus. The Wheel King is where the biggest jackpots are found.
Once the bonus game ends, your prize is confirmed, and if you’ve hit a jackpot, the payout is credited to your account. Large wins may be subject to verification by the casino operator, including any identity and account checks, before the funds are released.
Keep in mind that not every bonus round will result in a win.
Is Jackpot King Worth It?
Whether or not Jackpot King games are worth playing depends entirely on what you're looking for. If you’re hoping for smaller possible wins, a standard slot with a higher Return-To-Player (RTP) rate and fixed jackpots might be more suitable. Jackpot slots typically have lower base game returns because a percentage of each bet goes towards funding the progressive prize.
There’s no strategy that can guarantee a win on a Jackpot King slot. The results are always random. Some players enjoy the idea of playing for a larger potential prize, while others may prefer games that offer possibly more frequent, but smaller payouts.
It may be a good idea to check the paytable and game rules before playing. These will show how the bonus rounds work, what symbols may trigger jackpots, and what the RTP of the game is. This can help you choose a game that fits your personal preferences.
If you choose to play Jackpot King games or any other slots, it’s important to treat them as a form of entertainment. Always set time and spending limits. Use tools like deposit caps, self-exclusion, or time-outs if you ever feel you need support.
For help and advice, you can visit BeGambleAware.org or speak to a support adviser through GamCare.
*All values (Bet Levels, Maximum Wins etc.) mentioned in relation to these slot games are subject to change at any time. Game features mentioned may not be available in some jurisdictions.
**The information provided in this blog is intended for educational purposes and should not be construed as betting advice or a guarantee of success. Always gamble responsibly.