Jackpot Giant slot review

Jackpot Giant slot: the short version

Jackpot Giant is one of Playtech's older jackpot titles, released in 2014 with a prehistoric giant and a row of smoking volcanoes. It plays like a standard five-reel line slot until either the volcano bonus or the jackpot line comes into view.

The specifications below are the published figures. Volatility is not given in the details we can verify, so it is left out rather than guessed; the game's info screen is the place to check.

How the features work in Jackpot Giant

There are three moving parts, and each one has a single, clear trigger. Knowing them helps you read the screen quickly on a phone, where the reels take up most of the space.

The Giant's hand wild

A giant's hand is the wild symbol. It substitutes for all of the paying symbols to complete line wins. It also matters for the jackpot, because the jackpot is a line of wilds rather than a separate bonus round.

The Giant Bonus pick game

Volcano bonus symbols can land on reels 1 and 5. When one lands on each of those reels in the same spin, the Giant Bonus starts. Six volcanoes appear and you pick three of them, each revealing a cash prize.

Some volcanoes do more than pay a prize: one kind gives you an extra pick, and another reveals every prize on the board. Because the choices are hidden, your picks do not change the expected value; the outcome is set by the game's random number generator.

The progressive Giant Jackpot

The jackpot is won by landing five wilds across payline 1. The paytable shows which pattern on the grid counts as payline 1, so it is worth checking before you play. Progressive games normally display the current value of the pot, which rises as players stake until someone wins it.

How a progressive jackpot like the Giant Jackpot works

A progressive jackpot grows over time because a small part of each stake is added to the prize pool. When someone wins, the pot resets to a starting value and builds again. This is different from a fixed jackpot, which pays the same amount every time.

Two things follow from this design. First, part of the game's return is held back for the jackpot, which is one reason jackpot slots often show lower RTPs than non-jackpot games. Second, the jackpot is rare by nature, so most of what you experience is the base game and the pick bonus.

Whether the 94.22% figure includes the jackpot contribution is not stated in the details we can verify. The game's help screen in your app should explain how the RTP is calculated and whether stake size affects jackpot eligibility.

Our jackpot slots guide compares progressive, fixed and network jackpots in more depth.

Jackpot Giant's 50 fixed paylines and what your stake covers

All 50 lines are always active, so you cannot reduce the number of lines to lower the stake. The total bet is spread evenly across the lines. That matters for the jackpot, because payline 1 is always in play whatever your stake.

The smallest stake your casino accepts may be different from these examples, and some apps let you pick a coin value rather than a total. Read the stake panel before your first spin.

Jackpot Giant RTP and a £20 budget in pounds

An RTP of 94.22% gives a house edge of 5.78%. Expected loss is stake × house edge, so each £1 you bet costs about 5.78p on average over a very long run. A slot at 96.25% costs about 3.75p, so Jackpot Giant is roughly 2p per £1 more expensive than that.

These are averages, not forecasts. Any one session can end well above or below them, and a balance of £20 can be gone in a few dozen spins at higher stakes. The jackpot does not make losses less likely: it simply moves some of the game's return into one very rare prize. Plan the session with our casino app budgeting guide before you start.

Playing the Jackpot Giant slot on your phone

Playtech games run inside casino apps and mobile sites, so Jackpot Giant opens in the app's game window like any other slot rather than as a separate download. A 5×3 grid is easy to read on most phones. Portrait or landscape support depends on the casino's game window.

Before you spin: a quick jackpot checklist

1. Search for Jackpot Giant in your casino app's slot lobby and open the game.
2. Tap the info or paytable icon and find which pattern is payline 1.
3. Read the jackpot rules, including whether any stake level affects eligibility.
4. Note the stated RTP and compare it with 94.22%.
5. Set a deposit or loss limit in your account before choosing a stake.

Winning a jackpot on a phone is the same as on a computer, because the result is decided on the game server, not the device. Our answer to whether you can win a jackpot on mobile explains why.

UK rules for jackpot slots like Jackpot Giant

A progressive jackpot does not exempt a slot from the Gambling Commission's rules. The slot stake limits cap each spin at £5 for players aged 25 and over, and £2 for those aged 18 to 24, as set out in the Commission's stake limit guidance (opens in a new tab).

• Autoplay is banned, so each spin needs its own tap.
• There must be at least 2.5 seconds between spins, with no turbo or slam-stop.
• The game must not celebrate a return that is equal to or less than your stake.
• Your running net spend and time played must be on screen.
• Age and identity must be verified before you can deposit, and before you can try a demo.

Game rules and the likelihood of winning must be available to you before you play, under the Commission's rules and game descriptions standard (opens in a new tab). That is why the jackpot conditions sit in the help screen. Jackpot winnings, like other gambling winnings, are not taxed for UK players.

About Playtech, the studio behind Jackpot Giant

Playtech was founded in 1999 in Tartu, Estonia, by Teddy Sagi, and is now headquartered in Douglas on the Isle of Man. It is listed on the London Stock Exchange under the ticker PTEC. Besides slots it is known for its Age of the Gods jackpot series and its live casino studios, and it has owned the Swedish studio Quickspin since 2016.

More about the company is on Playtech's own website (opens in a new tab) and on our Playtech studio page.

Jackpot slots similar to Jackpot Giant

These jackpot and fairy-tale titles are reviewed on our site. Note how much the published RTPs vary, partly because of how each one counts its jackpot.

For apps with a strong jackpot section, see our best jackpot slot apps, or go back to the full list of slot reviews.

Jackpot Giant review: pros and cons

Where to play Jackpot Giant with a welcome offer

We cannot confirm that our partner apps carry Jackpot Giant, so check the game lobby before you register. The partner welcome offers are slot spin offers on selected games, and spins on other titles will not count towards a progressive jackpot. All offers are 18+ and terms apply.

• PlayOJO: first deposit of £10 or more for new UK customers (not Northern Ireland) brings 80 free spins on Big Bass Bonanza at 10p each, with winnings paid as cash and no wagering. It cannot be combined with other offers.
• Coral: bet £10 or more on slots after depositing and receive 100 free spins on selected games at 10p each; accept them within 48 hours and use them within 7 days. No wagering on winnings. E-wallets, Paysafe, prepaid and certain debit cards are excluded.
• Ladbrokes: deposit and play £10 or more on slots for 50 free spins a day over 10 days (500 in total), at 10p on selected games, claimed before 23:59 daily, valid 7 days, no wagering. PayPal, Paysafe, Skrill, Neteller and prepaid cards don't qualify.

Coral and Ladbrokes share an operator, LC International Limited, so holding new accounts at both may not be possible.

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.