Jackpot Giant slot review

What the Jackpot Giant slot offers

Jackpot Giant comes from Playtech, the company founded in Tartu, Estonia, in 1999, now based in Douglas on the Isle of Man and listed on the London Stock Exchange. Playtech is known for its Age of the Gods jackpots, and this 2014 title is a plain example of the formula: a simple base game with a wild, a pick bonus, and a progressive pot that grows until someone wins it.

The slot is worth understanding before you play because its trade-off is unusually clear. You give up a few points of return compared with many modern games, and in exchange part of every stake feeds the jackpot. Whether that is a good deal depends entirely on what you want from a session. Our slot reviews cover plenty of non-jackpot games if a higher RTP matters more to you.

How the features work in Jackpot Giant

The Giant's hand wild

The wild is the Giant's hand, and it substitutes for every paying symbol to complete line wins. With 50 fixed paylines, one wild in the middle of the grid can sit on many lines at once, so it often turns a near miss into a small win.

The Giant Bonus

Volcano bonus symbols appear on reels 1 and 5. When one lands on each of those reels on the same spin, the Giant Bonus starts. You are shown six volcanoes and choose three, each hiding a cash prize. Some volcanoes add an extra pick, and some reveal every prize on the board. As with all bonus rounds of this kind, the result is settled by the game, so which volcano you tap makes no difference to the long-run value.

The Giant Jackpot

The progressive jackpot is won by landing five wilds on payline 1. That is a single, specific line, so five wilds elsewhere on the grid pay a normal line prize rather than the jackpot. Open the paytable to see the shape of payline 1 and whether the jackpot has any stake conditions at your casino; our checked data does not mention one, but rules can differ by version.

What the progressive costs: Jackpot Giant RTP in pounds

An RTP of 94.22% leaves a house edge of 5.78%. On every £1 staked, the average cost is about 5.8p over a very long run. The table converts that into a £20 budget.

The next table compares the same 100 spins at £1 with two higher-RTP games in our reviews. The gap is the extra you pay, on average, for having a progressive pot in play.

Our checked data doesn't say whether the 94.22% includes the jackpot contribution, so read the help screen. If it does, part of that return only reaches the rare player who wins the pot, and the everyday return from line wins and the bonus is lower still. The page on progressive jackpot maths shows how to think about that split.

Jackpot Giant myths and the real odds

Progressive games attract more myths than any other slot type. The main ones, and what standard game maths says:

• "The jackpot is due because it is so big." The chance of five wilds on payline 1 is fixed by the game; the pot size has no effect on it. Our page on the gambler's fallacy explains why.
• "A huge pot makes the game good value." A bigger pot raises the jackpot's share of value slightly, but your odds of winning it stay tiny, and almost every session ends without it.
• "Jackpots only land at night or at busy times." Results come from a random number generator; time of day doesn't matter, as covered in do slots pay out more at certain times.
• "Someone just won, so it won't drop again for ages." The pot resets to a lower figure, but the odds of the next win are unchanged.

The Gambling Commission's technical standard for progressive jackpot systems (opens in a new tab) sets out the information operators must give players about how linked and progressive jackpots work, which is useful background for any game like this.

How to play Jackpot Giant online

1. Open the paytable and confirm the RTP, the shape of payline 1 and any jackpot conditions.
2. Set a budget you are happy to lose; the jackpot is a long shot on any session.
3. Choose your total stake; all 50 lines are always active.
4. Spin manually; UK slots do not allow autoplay.
5. Land a volcano on reels 1 and 5 together to play the Giant Bonus and pick three volcanoes.
6. Five Giant wilds on payline 1 pays the progressive jackpot.
7. Keep an eye on the net spend display and stop when you planned to.

Who the Jackpot Giant slot suits

This is a game for players who value the small chance of a big jackpot more than a few extra pence of return. If your priority is making £20 last, a slot with a 96% to 97% RTP will cost less on average. If you enjoy simple 50-line play with a single bonus and a pot in the corner of the screen, Jackpot Giant is straightforward and easy to follow.

UK rules for jackpot slots like Jackpot Giant

Jackpot slots follow the same rules as every other online slot in Great Britain. The stake cap is £5 a spin for players aged 25 and over and £2 a spin for 18 to 24-year-olds, in force since April and May 2025, as set out on our slot stake limits page. There is no autoplay, each spin must take at least 2.5 seconds and quick-spin buttons are banned. Winnings, jackpots included, are not taxed for UK players; read our explainer on how jackpots are paid out.

Other jackpot slots to compare

Playtech's Age of the Gods uses the multi-level Ultimate Power progressive, with a 95.02% RTP including the jackpot contribution. Games Global's Mega Moolah is the best-known network progressive, though its base-game RTP of 88.12% excludes the jackpot share. NetEnt's Mega Fortune is another long-running option. Browse more in our jackpot slots guide.

Another description of the bonus is in the OLBG Jackpot Giant review (opens in a new tab), and Playtech's own site (opens in a new tab) lists the company's current products.

Where to play Jackpot Giant in the UK

We can't confirm that any of our partners lists Jackpot Giant, so check the casino's game lobby before joining. Our partners' welcome deals are slot offers for 18+ new customers, with terms applying, and none applies to this game specifically. PlayOJO gives 80 free spins on Big Bass Bonanza for a first deposit of £10 or more, at 10p a spin, with no wagering on winnings.

Coral offers 100 free spins when you bet £10 on slots: 10p each on selected games, accept within 48 hours, valid for 7 days, no wagering on winnings, and some payment methods (such as PayPal, Skrill and prepaid cards) excluded. Ladbrokes gives 50 free spins a day for 10 days, up to 500 at 10p each, when you play £10 on slots, with no wagering; claim them by 23:59 each day and use them within 7 days. Coral and Ladbrokes share an operator, LC International Limited. See the Coral casino review for more.

18+. Every casino game has a built-in house edge, so over time you should expect to lose what you stake. Set a budget before you play and stop when it’s gone: safer gambling tools and support. Free, confidential help: National Gambling Helpline 0808 8020 133.