An Introduction to Jackpot Slot Games

Over the last two decades, slot games have become some of the most-played games at online casinos and bingo sites. They offer a multitude of themes and special features, ranging from the humble three-reel slot (which is similar to a classic fruit machine) and five-reel 3D slots with dazzling graphics and animations.

But, software companies like Playtech, IGT, and Microsoft are well aware that seasoned players are often more interested in how much money they can win. And if, like them, you’re seeking games that have the potential to award huge cash prizes, you’re best off playing a jackpot slot.

Jackpot slots typically feature one or more progressive jackpots that grow in value until one lucky person triggers the winning combination to release the pot. Some of these games are more likely to pay out to those who wager with higher bets while others can randomly award their jackpot to anyone who plays the game.

Although there’s no secret formula to winning, you’ll have the upper hand if you understand more fully how jackpot slot games work. For this reason, we’ve created this guide which aims to tell you all you need to know about playing jackpot slots online.

Plus, our website shows you a constantly updated list of the best places to play your favourite slots and other games (such as bingo, scratch cards, table games, card games, video poker, and live dealer games).

We’ve sourced the UK’s most popular and ground-breaking new online casinos and bingo sites, and carried out full reviews so that our readers can quickly and easily find their perfect playing partner. And, as our reviews also cover what types of games are available at each site, it won’t take you long at all to find those that stock an excellent selection of jackpot slots!

Where to play jackpot slots

Rank
Site
Bonus
Rating
Visit
1
10 NO WAGER FREE SPINS ON SIGN UP + 100 BONUS SPINS FOR A £10 DEPOSIT
Offer only applies to first time deposits on new accounts. Only one signup offer can be claimed per person, per household. Free spin winnings must be wagered 40x in order to make a withdrawal. There is a maximum withdrawal of £/$/€10 associated with this offer. Players deemed to be abusing the promotion are subject to account closure and forfeiture of any outstanding balance or refund. TradaCasino reserve the right to suspend or terminate this promotion at any time. Wagering, Withdrawal restrictions & T&C apply.
2
£300 BONUS ON FIRST 2 DEPOSITS
New players only, min deposit £10, wagering 45x bonus, max bet £5 with bonus funds. Live casino play excluded with bonus. 100% up to £100 bonus on 1st deposit. 50% up to £200 bonus on 2nd deposit. Welcome bonus excluded for players depositing with Skrill or Neteller. No max cash out on deposit offers. Eligibility is restricted for suspected abuse. Wagering, Withdrawal restrictions & T&C apply.
3
UP TO £300 BONUS + 100 ZEE SPINS & 500 ZEE POINTS
18+. New players only. Valid for 15 days after 1st deposit. Min Deposit £20 Max Bonus Bet £5 Winnings from spins capped at £50 First 100 Zee spins: 10/day. Spins must be used within 24 hours, Funds within 30 days. Bonus funds are separate to Cash funds, and are subject to 35 wagering (bonus + cash). 18+. Full terms apply. BeGambleAware.org. Wagering, Withdrawal restrictions & T&C apply.
4
£250 WELCOME BONUS
New customers only. Opt-in required. 100% Match Bonus up to £250 on 1st deposit of £20+. Additional bonuses of up to £250 on 2nd deposit of £20+ and up to £500 on 3rd deposit of £20+. 50x bonus wagering applies as do weighting requirements. Credit Card, Debit Card & PayPal deposits only. Irregular gameplay may invalidate your bonus. Terms Apply
5
200% MATCHED BONUS UP TO £500 + 30 BONUS SPINS
18+. New players only. 1 bonus offer per player. Min. deposit £20. Max bonus bet £5. Extra spins on selected games only- must be used within 72 hours. Bonus funds expire in 30 days, unused bonus shall be removed. Bonus funds are 200% match up to £500 + 30 extra spins on 1st deposit, 25% match up to £800 + 25 extra spins on 2nd deposit, and 50% match up to £200 + 50 extra spins on 3rd deposit. Bonus funds are separate to Cash funds, and are subject to 40x wagering the total bonus & cash. Only bonus funds count towards wagering contribution. Terms apply. BeGambleAware.org.
6
£5 NO DEPOSIT OFFER + £150 WELCOME PACKAGE & 150 SLOT SPINS
£5 Bonus for registering debit card to account. Cardholder name must match account holder and have £1.01 available to verify account. £5 bonus has 50x wagering requirements and maximum conversion amount of £10. £5 max bonus stake. 7-day bonus expiry. Game restrictions apply. Can be claimed once per customer. Full T&C's apply.
7
£150 WELCOME PACKAGE + 150 SLOT SPINS
First 3 deposits only. Min dep £10 (£20 3rd deposit). Max cumulative bonus £150 and 150 spins. Bonus match amount and spins games eligibility vary per deposit. 50x wagering on deposit + bonus on bonus spins, 10x max conversion, £5 max bonus stake. Full T&C's apply.
8
10 WELCOME SPINS UPON REGISTRATION + 100% UP TO £300 WELCOME BONUS & 50 EXTRA SPINS
T&Cs Apply, 18+, New Customers Only
9
UP TO £250 WELCOME BONUS + 100 BONUS SPINS
Opt-in required. 18+ only. New customers only. First two deposits only. Maximum bonus is £250, plus 100 bonus spins. Bonus spins valid on select slots. Wagering Requirement of 45x Bonus Amount. Max bet £5 per bet. Max conversion £1,000. Neteller / Skrill deposits not permitted. Bonuses expires after 7 days. Wagering, Withdrawal restrictions & T&C apply.
10
10 SLOT SPIN + £10 DEPOSIT BONUS
£10 Minimum transfer. 100% bonus up to £10. Max bonus £10 & 10 spins. Wagering required. Wagering, Withdrawal restrictions & T&C apply.
11
10 SLOT SPINS + £10 DEPOSIT BONUS
New Customer Offer, Mind Dep £10 + 10 Spins on Cleopatra. Selected Slots Only. 4x conversion. 30x Wagering. Wagering, Withdrawal restrictions & T&C apply.
12
100% UP TO £50 + 50 WISH SPINS
New customers only. Min £10 dep. Neteller/Skrill excl. Wagering 40x on bonus amount within 7 days. Bonus max win £1,000. Max 50 Wish Spins. Wish Spins max win £100. Bonus max bet £5. 1 time per player/IP/Household. Game weighting and restrictions apply.
13
50 SLOT SPINS + £500 BONUS
14
UP TO £400 BONUS + 200 SLOT SPINS OR 600 SLOT SPINS
This Offer is only available for new customers in UK and Northern Ireland. New players must be 18+ years of age and proof of identity documents may be requested for verification purposes. Wagering, Withdrawal restrictions & T&C apply.
15
CLAIM 25 SLOT SPINS [Promocode: DELUXINO]
First-time depositors only (18+ UK exc NI). Min Deposit: £10. Max Offer per deposit: 25 Free Spins on Fluffy Favourites. Free Spins Winnings will be capped at £2.50 and credited to your real money balance. Free Spins expire after 7 days. Promo code: DELUXINO. Deposit balance is available for withdrawal at any time. General withdrawal restrictions & Full T&C's apply. Valid until the end of month. Wagering, Withdrawal restrictions & T&C apply.
16
100% MATCHED BONUS + 300 FREE SPINS
£10 min deposit. £5 max bet using bonus. 40 x wagering applies. Bonus valid for 14 days. Minimum £5 wager to activate 300 Spins. 30 Spins on Starburst games will be credited per day for 10 days after qualifying deposit/wager is met. Free Spins valid for 72 hours from credit. Max Free Spins winnings £100. Skrill + Neteller excluded. Wagering, Withdrawal restrictions & T&C apply.
17
100% UP TO £300 + 50 EXTRA SPINS [PROMOCODE: 300STARS]
Min. deposit: £20. Offer valid on first deposit. Offer only applies to new players. Bonuses that require a deposit must have the bonus amount wagered 35 times. Winnings won with free spins that require a deposit, have to be wagered 35 times your extra spins winnings, unless stated otherwise. Bets on different games contribute differently to the compliance of the wagering requirements.
18
50 WAGER FREE SPINS + £100 BONUS
New players only. 18+. 35x wagering applies to Bonus Cash and Free Spins. Deposit of £20+ unlocks a 100% Match Bonus up to £100 in Bonus Cash, subsequent wager of £20+ on slots unlocks 100 Free Spins and 20 Free Spins per day over 5 days on selected games. Wagering, Withdrawal restrictions & T&C apply.
19
UP TO £200 WELCOME BONUS + 25 FREE SPINS ON STARBURST
50X Wagering the bonus amount before withdraw. Valid for 90 Days from receipt. Free spins offer: valid for 7 days from receipt.
20
100% UP TO £300 + 90 BONUS SPINS
18+. New players only. Min deposit £20. Bonus spins are valid on Book of Dead only. Bonus funds are 100% up to £300 and separate to Cash funds. 35x bonus wagering requirements apply. Only bonus funds count towards wagering requirement. £5 max. bet with bonus. Bonus funds must be used within 30 days, spins within 10 days, otherwise any unused shall be removed. Terms Apply. BeGambleAware.org
21
STAKE £10, PLAY WITH 50 FREE SPINS (NO WAGER)
New Casino customers only. £10 Minimum transfer. £10 Minimum stakes within 7 days. Minimum 5 game rounds. Game restrictions apply. Maximum 50 Free Spins on selected games. Free Spins expire after 7 days. Wagering, Withdrawal restrictions & T&C apply.
22
50 BONUS SPINS + £100 BONUS
New players only. Min deposit £20. bonuses to a max of£100 + 50 bonus spins. Wagering bonus(+deposit) 35x. Wagering bonus spins 40x. Wagering, Withdrawal restrictions & T&C apply.
23
200% WELCOME BONUS UP TO £5,000 + 50 BONUS SPINS
1 bonus offer per player. Min. deposit £20. Max. bonus bet is £5. Bonus spins on selected games only and must be used within 72 hours. Bonus funds expire in 30 days, unused bonus funds will be removed. Bonus funds are 200% match up to £5000 on your 1st deposit, 50% match up to £1000 on your 2nd deposit, and 75% match up to £500 on your 3rd deposit. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus, cash & bonus spins. Wagering, Withdrawal restrictions & T&C apply.
24
50 FREE NO DEPOSIT FREE SPINS + DEPOSIT £10, GET £30 BONUS
New customers to Paddy Power only, sign up via the Paddy Power Vegas Reg Code PVCREG. 50 Free Spins added instantly to accounts once SMS verified with no deposit needed. Spins valued at £/€0.20 each and no wagering requirements on free spins. On 1st Deposit Bonus there is x20 wagering on the bonus funds once opted in and £/€10 deposit is made. Full T&Cs Apply.
25
UP TO 120 WAGER FREE-SPINS ON YOUR FIRST DEPOSIT
Valid for new players registering from 04/02/2019 – to 30/06/2019. Must be claimed within 35 days of account creation. Max credited Volt Points = 12000. Volt Points will be credited to players accounts and players choose their Volt Spins from the Volt Shop. No wagering on Volt Spins winnings. Max winnings from Volt Spins is £500. Min first dep of £20 required. Neteller & Skrill deposits excluded. Volt Spins must be used within 7 days of being granted. Further T&C’s apply. Wagering, Withdrawal restrictions & T&C apply.
26
30 SLOT SPINS ON SIGN UP + £400 BONUS
New players only. Max 30 Free Spins [FS] available for 7 days. FS winnings are granted in games bonus after all FS are used. FS wins set at £1 - £4 (per 10 FS). Bonus wins capped at £100 exc. JP win. Non Funded players balance is capped at £100. To withdraw games bonus & related winnings, wager 30x the amount of bonus. Wagering reqs. vary by game, withdrawal restrictions & T&C apply.
27
100% BONUS UP TO £50 + 50 SPINS ON STARBURST
Terms and Conditions applies. New players only. 18+. Min deposit £20. Wagering requirement apply 35x. Offer valid for 72hr. See full terms.
28
DEPOSIT £10 & WIN UP TO 500 FREE SPINS
NEW PLAYERS ONLY, MIN DEPOSIT £10, £8 MAX WIN PER 10 SPINS, MAX BONUS CONVERSION £250, 65X WAGERING REQUIREMENTS AND FULL T&CS APPLY
29
UP TO £500 WELCOME PACKAGE + 50 SPINS ON STARBURST
New Customers only, First 3 deposits only, Min deposit £10. Max bonus £500 + 50 Spins on Starburst. Selected Slots Only, 4x conversion 40x wagering, T's & C's apply.
30
WAGER £100, GET £5 BONUS (UP TO £50)
18+, GambleAware.com. Min Deposit £20. Bonus expires 7 days from registration. For every £100 wagered £5 will be credited. Restrictions apply. See terms and conditions
31
UP TO £250 WELCOME BONUS
18+ | New customers only| Deposit a maximum of £250 to receive 100% bonus| Min 35x wagering (on deposit + bonus) on selected games | T&Cs Apply
32
£5 FREE NO DEPOSIT BONUS + £50 BONUS & 50 SLOT SPINS
New players only. Max conversion £20.Selected slots only. SMS validation required.No deposit required. 100x wagering. Wagering, Withdrawal restrictions & T&C apply.
33
150% BONUS UP TO £150
New accounts only. Min. £10 deposit, debit/credit card and PayPal only. 50x wagering, game contributions vary, max stake applies. 7 day expiry. See full terms.
34
100% UP TO £100 + 50 FREE SPINS ON GUNS'N'ROSES
18+ New players. Minimum deposit £20. 35x wager deposit + bonus on selected games.
35
DEPOSIT & PLAY £5, GET 20 FREE SPINS
Deposit and wager minimum £5. Winnings from free spins paid as cash. Free spins expire 7 days after acceptance. New Casino players from UK & Ireland only. SMS verification required. By taking part in this promotion, you agree with our Terms & Conditions
36
£10 BONUS & 10 SLOT SPINS
New customers only. Min dep £10. Max bonus £10 + 10 spins on Starburst, selected slots only. 4x conversion. 30x wagering. Wagering, Withdrawal restrictions & T&C apply.
37
UP TO £400 BONUS & 100 BONUS SPINS
New eligible UK players only. Select Casino offer on sign-up and deposit. 4 deposits of £10, £20, £50, £100 matched with a bonus cash offer of same value (14 day expiry). 35x real money cash wagering (within 30 days) on eligible games before bonus cash is credited. Spins credited upon deposits; under £50 =10 Spins, £50 or over =25 Spins; on Book of Dead only (3 day expiry, winnings paid in cash). Play Responsibly. 18+ begambleaware.org. Click here for full terms and conditions
38
1 FREE SPINS FOR EVERY £1 DEPOSIT (MAX 50)
First Deposit Only. Min. deposit: £10. Game: Vikings Runecraft, Spin Value: £0.50, Max Free Spins: 50. WR 60x free spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings amount or £5 (lowest amount applies). Free Spins must be used before deposited funds. Bonus Policy applies. Bonus Policy applies.
39
50 SLOT SPINS + £200 BONUS
18+ Full T&C's Apply. New players Only. £10 minimum deposit. 40 x wagering applies. Bonus valid for 14 days. Minimum £5 wager required to activate 50 Free Spins. 10 Free Spins will be credited per day for 5 days after qualifying deposit/wager is met. Free Spins valid for 72 hours from credit. Wagering, Withdrawal restrictions & T&C apply.
40
DEPOSIT £10 GET £10 BONUS & 10 FREE SPINS [Promo code: "JAAK"
New Players Only (UK exc NI 18+) Minimum deposit £10. Maximum bonus £10 and £10 free spins (Starburst). Bonus wagering x35 (bonus from deposit). Promo code: JAAK. Spin wagering 35x. Valid until further notice. Wagering, Withdrawal restrictions & T&C apply.
41
200 FREE SPINS + £200 BONUS
18+ Full T&C's Apply. New players Only. £10 min deposit. £5 max bet using bonus. 40 x wagering applies. Bonus valid for 14 days. Minimum £5 wager to activate 200 Spins. 20 Spins on Starburst games will be credited per day for 10 days after qualifying deposit/wager is met. Free Spins valid for 72 hours from credit. Max Free Spins winnings £100. Skrill + Neteller excluded. Always refer to Bonus Terms. Wagering, Withdrawal restrictions & T&C apply.
42
DEPOSIT £25, PLAY WITH £75 + 100 SLOT SPINS
The Welcome Package is split in 4 deposit bonuses to a max of £700 and 20 free spins daily for the first 5 days. 100%: 35x wagering requirement (deposit + bonus). 50%+25%: 30x wagering requirement (d+b). Free Spins winnings: 30x wagering requirement. Min deposit £20. Free Spins valid for 24 hrs. 18+. Wagering, Withdrawal restrictions & T&C apply.
43
£10 BONUS + 10 EXTRA SPINS
Applies only to new depositing players with Code. Min deposit £10. Wagering requirement apply 35x. Offer valid for 1 week. Wagering, Withdrawal restrictions & T&C apply.
44
100% UP TO £100 + 10 CASHBACK
Welcome bonus for new players only. Maximum is 100% up to 300. Min deposit is £20. No max cash out. Wagering is 35x bonus. Maximum bet while playing with a bonus is £5. Eligibility is restricted for suspected abuse. Cashback is cash with no restrictions
45
20 SLOT SPINS ON SIGN UP + 100% Up To £100 & 100 BONUS SITES (BOTH ON BOOK OF DEAD SLOT)
New Welcome Offer for UK and ROW. The offer will be live from 00:00 GMT 9th April 2019. The welcome bonus is only available on the first deposit to Dunder. The welcome bonus is only available to players who are age verified. The welcome bonus is not offered to players depositing with any e-wallet such as Skrill or Neteller. The Free/Bonus Spins have a wagering requirement of 30x. The Free/Bonus Spins on the first deposit is split in 50+50 spins in two days after deposit. Max bet with bonus is still £/€5. The welcome offer expires 21 days after registration. Wagering requirement is 30x deposit+bonus (60x bonus in UK terms).
46
DEPOSIT £10, GET 25 EXTRA SPINS
Wagering, Withdrawal restrictions & T&C apply.
47
£88 NO DEPOSIT BONUS + £1,500 WELCOME PACKAGE
No Deposit Offer: New players only • £88 is granted in FreePlay (FP) • FP must be claimed within 48 hrs of receiving the email and expires after 14 days • FP wins are credited as bonus and capped at £15, exc. JP win • Welcome Bonus Package: £20 min deposit • 1st deposit immediate 100% up to £100 bonus • 2nd -5th deposits must be done and wagered 3 times within 7 days of the 1st deposit, to receive 30% up to £350 bonus per deposit • Bonus wins are capped at £500 • To withdraw bonus & related wins, wager 30 x (bonus amount) within 90 days • Wagering req. vary by game • This offer may not be combined with any other offer • Wagering, Withdrawal restrictions & T&C apply.
48
20 SPINS ON SIGN UP + 180 SLOT SPINS & UP TO £100 WELCOME BONUS
new customers. spins: 20 on registration, 180 after deposit, winnings given as bonus funds, 20x wagering. spins and bonus wagering on age of the gods games only. welcome bonus: £20 min deposit, max bonus £100, wagering 40x. game weighting applies. betting limits: slots - £5 all other games – 10% of bonus amount.
49
20 SLOT SPINS ON SIGN UP + £300 BONUS
18+ New customers only. 20 free spins in Starburst on registration. Bonuses are on opt-in basis. Min deposit is £10. 30x wagering requirements apply for bonuses and winnings to be withdrawn. Contribution % towards WR vary from 0% to 100% according to game. Participation of new customers in the Welcome Offer requires a £10 minimum deposit.
50
WIN UP TO 500 FREE SPINS!
NEW PLAYERS ONLY, MIN DEPOSIT £10, £8 MAX WIN PER 10 SPINS, MAX BONUS CONVERSION £250, 65X WAGERING REQUIREMENTS AND FULL T&CS APPLY
51
UP TO 100 SLOT SPINS ON STARBURST
New customers only. Valid promo must be used for each deposit to cliam the bonus. For each bonus Min deposit £10. Maz bonus 25 spins on Starburst. 4x conversion. 30x wagering applies. Valid until further notice. Wagering, Withdrawal restrictions & T&C apply.
52
DEPOSIT £10, GET 25 SLOT SPINS [PROMO CODE: PLAY25]
First-time depositors only (UK exc NI 18+). Min Deposit: £10. Max Offer: 25 Free Spins on Sharknado. Free Spins Winnings will be capped at £2.50 and credited to your real money balance. Promo code: PLAY25. Valid until further notice. Wagering, Withdrawal restrictions & T&C apply.
53
DEPOSIT £10, GET 25 SLOT SPINS [PROMO CODE: PLAY25]
First-time depositors only (UK exc NI 18+). Min Deposit: £10. Max Offer: 25 Free Spins on Sharknado. Free Spins Winnings will be capped at £2.50 and credited to your real money balance. Promo code: PLAY25. Valid until further notice. Wagering, Withdrawal restrictions & T&C apply.
54
£100 BONUS & 200 SLOT SPINS
Terms and Conditions apply. New players only. 18+. 35x wagering applies to Bonus Cash and Bonus Spins. Deposit of £20+ unlocks a 100% Match Bonus up to £100 in Bonus Cash, subsequent wager of £20+ on slots unlocks 100 Bonus Spins and 20 Bonus Spins per day over 5 days on selected games. BeGambleAware.org.
55
50 SLOT SPINS + £2,500 WELCOME BONUS
18+. New players only. One bonus offer per player. Minimum deposit £20. Max bonus bet is £5. Bonus spins on selected games only and must be used within 72 hours. Bonus funds must be used within 30 days otherwise any unused bonus shall be removed. Bonus funds are 100% match up to £2500 on your 1st deposit, 50% match up to £500 on your 2nd deposit, and 75% match up to £500 on your 3rd deposit. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus, cash & bonus spins. Wagering, Withdrawal restrictions & T&C apply.
56
11 SPIN NO DEPOSIT REQUIRED + 50% UP TO £499 & 100 SPINS
New players only, max bet £5. 11 Fun Spins for Registration (max withdrawal is £100). 50% up to £499 on 1st deposit. No max cashout on deposit offers.
57
77 NO DEPOSIT FREE SPINS + £200 WELCOME BONUS
No Deposit Offer: New players only • Predefined bet amount of £0.25 per spin • Free Spins (FS) must be claimed within 48 hrs of receiving the email and expires after 14 days • FS wins are capped at £20 Bonus, exc. JP win • Deposit Bonus Offer: 100% up to £200 FreePlay (FP) • FP wins are capped at the amount of FP received, exc. JP win • FS & FP wins are credited as bonus • Bonus wins are capped at £500 • To withdraw bonus & related wins, wager 30 x (bonus amount) within 90 days • Wagering req. vary by game • This offer may not be combined with any other offer • Wagering, Withdrawal restrictions & T&C apply.
58
DEPOSIT £10 PLAY WITH £60 + 20 SLOT SPINS
UK & IRL only. Deposits made with e-wallets are not valid for this promo. Bonus wagering x35 on eligible games. Winnings from bonus capped at£500. Spins available after bonus is redeemed/lost. 10 per day with no wagering. Full T&Cs apply.
59
DEPOSIT £10 GET 25 FREE SPINS
First-time depositors only (18+ UK exc NI). Min Deposit: £10. Max Offer: 25 Free Spins on Fluffy Favourites. Free Spins Winnings will be capped at £2.50 and credited to your real money balance. Promo code: RISE. Full T&Cs apply. Valid until further notice. Wagering, Withdrawal restrictions & T&C apply.
60
200 SLOT SPINS & £100 WELCOME BONUS
New customers. Spins: 200 in total with 40 given on first deposit, winnings given as bonus funds, 20x wagering. Spins and bonus wagering on age of the gods games only. Welcome bonus: £20 min deposit, max bonus £100, wagering 40x. Game weighting applies. Betting limits: slots - £5 all other games – 10% of bonus amount. T&C Apply.
61
50 SLOT SPINS & £500 BONUS
62
200 SLOT SPINS + £200 WELCOME BONUS
18+ Full T&C's Apply. New players Only. £10 min deposit. £5 max bet using bonus. 40 x wagering applies. Bonus valid for 14 days. Minimum £5 wager to activate 200 Spins. 20 Spins on Starburst will be credited per day for 10 days after qualifying deposit/wager is met. Free Spins valid for 72 hours from credit. Max Free Spins winnings £100. Skrill + Neteller excluded. Always refer to Bonus Terms. Wagering, Withdrawal restrictions & T&C apply.
63
200% WELCOME BONUS + 50 BONUS SPINS
18+. New players only. 1 bonus offer per player. Min. deposit £20 Max. bonus bet is £5 Bonus spins on selected games only and must be used within 72 hours. Bonus funds expire in 30 days, unused bonus funds will be removed. Bonus funds are 200% match up to £3,000 on your 1st deposit, 40% match up to £1,000 on your 2nd deposit, and 80% match up to £500 on your 3rd deposit. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus, cash & bonus spins. Wagering, Withdrawal restrictions & T&C apply.
64
20 SLOT SPINS + 200% WELCOME BONUS
18+. New players only. One bonus offer per player. Minimum deposit £20. Max bonus bet is £5. Bonus spins on selected games only and must be used within 72 hours. Bonus funds must be used within 30 days otherwise any unused bonus shall be removed. Bonus funds are 200% match up to £2000 on your 1st deposit,50% match up to £500 on your 2nd deposit, and 75% match up to £500 on your 3rd deposit. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus, cash & bonus spins. Wagering, Withdrawal restrictions & T&C apply.
65
100% WELCOME BONUS UP TO £3,000 + 50 BONUS SPINS
18+. New players only. One bonus offer per player. Minimum deposit £20 Max bonus bet is £5 Bonus spins on selected games only and must be used within 72 hours. Bonus funds must be used within 30 days otherwise any unused bonus shall be removed. Bonus funds are 100% match up to £3,000 on your 1st deposit,50% match up to £250 on your 2nd deposit, and 100% match up to £250 on your 3rd deposit. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus, cash & bonus spins. Wagering, Withdrawal restrictions & T&C apply.
66
10% MONEY BACK WEEKLY UP TO £1,000
10% back on net losses, real money bets minus real money wins. Valid 10:00GMT Fri to 10:00GMT Fri. Min £1, Max £1,000. money back credited, every Friday at 10:01GMT. Terms and Conditions apply.
67
100 SLOT SPINS + £200 BONUS
Applies to new depositing players. Min deposit £10. Wagering requirements apply 35x. Offer valid for 3 months. 100 spins require 3 deposits.
68
100% BONUS UP TO £50 + 100 EXTRA SPINS
18+. New customer only. Min £15. Neteller/Skrill/Paysafe excl. Max bonus £50. Wagering bonus x60 within 30 days. Bonus max bet £5. Max cashout £1000, Spins paid 10 per day. Game weighting apply. Wagering, Withdrawal restrictions & T&C apply.

What are Jackpot Slot Games?

As you may already be aware, there are many different types of online slots to choose from, and as technology is constantly advancing, so too are the types of games that are created by the world’s leading software manufacturers.

There are three-reel, five-reel, six-reel, mobile, 3D, and jackpot slots, as well as all of the other innovative games that fall somewhere in between.

Not even jackpot slot games belong to one particular game type as the way that their jackpots work can differ greatly.

The four types of jackpot slot that you’re most likely to encounter while playing at online bingo and casino sites are standalone, networked, multiple, in-house, and non-progressive. Below, you’ll find a brief overview of how each one works.

Standalone

Standalone progressive jackpot slots use one jackpot which is funded by a percentage of all wagers placed on it by players, and the jackpot is not linked to any other game. The value of the pot rises with each new bet that’s staked on it, and once it pays out, it resets to a minimum fixed amount. Although standalone games tend to offer smaller pots than networked and linked slots, they still have the potential to award generous sums of cash.

Networked

Networked progressive jackpot slots such as the world-famous Mega Moolah are available across a network of online casinos which use the same software platform (e.g. Playtech or Microgaming). Because such large numbers of casinos are involved, with each one having thousands of players, networked games frequently offer the biggest pay-outs due to the vast numbers of bets that are constantly being placed on them.

It’s not uncommon to see networked jackpot slots boasting pots that are worth £1m or more.

Multiple

Multiple progressive jackpot slot games do pretty much what they suggest. They offer more than one (and typically three) jackpots which vary in size.

In-House

In-house progressive jackpot slot games are games which are linked together either at one online casino or several casinos that belong to the same operator.

Non-Progressive

Some games are advertised as jackpot slots but they are not progressive, i.e. they do not grow in size. A good example is Cirque Du Soleil – Kooza by Bally Technologies. Kooza comes with four pots called Mini, Grand, Colossal, and Tres Magnifique, and their size is determined by how much a player bets. Pots of this type are commonly referred to as fixed jackpots.

Popular Jackpot Slot Games and How They Work

Mega Moolah and Mega Moolah Isis

Mega Moolah and Mega Moolah Isis are two of the most popular jackpot slots in the entire world. The only difference between them is the theme, with the former favouring an animal safari and the latter opting for an Egyptian goddess theme.

The jackpot is shared between the two games, and the way in which you can win it is identical too. There are four jackpots to play for – Mini, Minor, Major, and Mega – which you can see rising at the top of the screen. Each pot seeds (i.e. resets after being won) at a different amount. The Mini seeds at £10; the Minor seeds at £100; the Major seeds at £10,000, and the Mega seeds at £1m.

The pots can be won via the Mega Moolah jackpot game, which can be randomly awarded on any spin. You spin a wheel to find out which prize you’ve won, and as you might expect, there are more winning segments for the smaller pots than the larger ones.

As well as mega sums of cash, the Mega Moolah slot also offers players free spins and extra winning opportunities through wild substitutions.

Mega Fortune

Mega Fortune is a five-reel progressive slot with twenty-five paylines, and its theme revolves around a millionaire lifestyle with paytable symbols that include luxury yachts, gold watches, limousines, and bottles of champagne.

The game has a free spins feature plus a Wheel of Fortune Bonus in which you can earn instant cash prizes, access to other prize wheels, and one of three progressive jackpots (Rapid, Major, and Mini). The largest pot seeds at £250,000, and according to online jackpot trackers, the biggest pot pays out an average of £4m per win roughly every ten weeks.

Where to play Mega Fortune jackpot slot

Site
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20 SLOT SPINS ON SIGN UP + £300 BONUS
18+ New customers only. 20 free spins in Starburst on registration. Bonuses are on opt-in basis. Min deposit is £10. 30x wagering requirements apply for bonuses and winnings to be withdrawn. Contribution % towards WR vary from 0% to 100% according to game. Participation of new customers in the Welcome Offer requires a £10 minimum deposit.
£100 BONUS & 200 SLOT SPINS
Terms and Conditions apply. New players only. 18+. 35x wagering applies to Bonus Cash and Bonus Spins. Deposit of £20+ unlocks a 100% Match Bonus up to £100 in Bonus Cash, subsequent wager of £20+ on slots unlocks 100 Bonus Spins and 20 Bonus Spins per day over 5 days on selected games. BeGambleAware.org.
UP TO £400 BONUS & 100 BONUS SPINS
New eligible UK players only. Select Casino offer on sign-up and deposit. 4 deposits of £10, £20, £50, £100 matched with a bonus cash offer of same value (14 day expiry). 35x real money cash wagering (within 30 days) on eligible games before bonus cash is credited. Spins credited upon deposits; under £50 =10 Spins, £50 or over =25 Spins; on Book of Dead only (3 day expiry, winnings paid in cash). Play Responsibly. 18+ begambleaware.org. Click here for full terms and conditions

Millionaire Genie

1,001 Arabian Nights and the story of Aladdin is the inspiration for Random Logic’s popular slot, Millionaire Genie. It comes with a free spins feature that includes extra wild symbols, and a Genie’s Palace Bonus which gives you a cash amount and a win multiplier.

The good news is that the progressive JP is awarded at random, so you don’t need to spin a particular symbol combination to win it. However, the higher your stakes, the better your chances of scooping it.

Where to play Millionaire Genie jackpot slot

Site
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£88 NO DEPOSIT BONUS + £1,500 WELCOME PACKAGE
No Deposit Offer: New players only • £88 is granted in FreePlay (FP) • FP must be claimed within 48 hrs of receiving the email and expires after 14 days • FP wins are credited as bonus and capped at £15, exc. JP win • Welcome Bonus Package: £20 min deposit • 1st deposit immediate 100% up to £100 bonus • 2nd -5th deposits must be done and wagered 3 times within 7 days of the 1st deposit, to receive 30% up to £350 bonus per deposit • Bonus wins are capped at £500 • To withdraw bonus & related wins, wager 30 x (bonus amount) within 90 days • Wagering req. vary by game • This offer may not be combined with any other offer • Wagering, Withdrawal restrictions & T&C apply.
DEPOSIT £10, GET £50 BONUS + £900 NO DEPOSIT BINGO
New players only. Wager min £10 (excluding ‘casino games’) within 7 days of deposit, get 300% bonus (max £200) + 1,000 Wink Rewards [WR] worth £20 bonus. WR may be redeemed in Wink’s Shop for other bonuses or vouchers with selected suppliers. Bonus + WR must be claimed within 7 days of grant. Suppliers’ terms apply to use of vouchers. To withdraw bonus & related wins, wager 2x the amount of deposit + bonus funds. Deposits can be withdrawn at any time. Withdrawal restrictions & Further T&Cs apply.
77 NO DEPOSIT FREE SPINS + £200 WELCOME BONUS
No Deposit Offer: New players only • Predefined bet amount of £0.25 per spin • Free Spins (FS) must be claimed within 48 hrs of receiving the email and expires after 14 days • FS wins are capped at £20 Bonus, exc. JP win • Deposit Bonus Offer: 100% up to £200 FreePlay (FP) • FP wins are capped at the amount of FP received, exc. JP win • FS & FP wins are credited as bonus • Bonus wins are capped at £500 • To withdraw bonus & related wins, wager 30 x (bonus amount) within 90 days • Wagering req. vary by game • This offer may not be combined with any other offer • Wagering, Withdrawal restrictions & T&C apply.

Major Millions

Major Millions is five-reel jackpot slot by Microgaming, and it commonly features at online casinos for UK players. It uses a humorous military theme, and lets you win cash prizes with symbols such as ammunition, binoculars, tanks, warships, fighter planes, and the army major’s cap.

Land five wild symbols on the fifteenth payline, and you’ll be taking home a minimum of £250,000!

Tunzamunni

Tunzamunni by Microgaming uses classic fruit machine symbols such as bars and 7s. It’s a three-reel game with just one payline and no special features, but you can still score a tasty progressive jackpot while playing it if you get a silver 7, a red 7, and a blue 7 from left-to-right. The only qualifying criteria for this particular progressive jackpot is that you must be playing with the maximum number of coins (N.B., five) which equates to a maximum stake of 25p.

Age of the Gods

Age of the Gods is the first in the series of Playtech’s Age of the Gods jackpot slots, and all of them share a progressive pot, although each one boasts individual special features such as Pantheon of Power.

Age of the Gods has four different jackpots – Power, Extra Power, Super Power, and Ultimate Power, and they can be randomly awarded on any given spin.

Gladiator Jackpot

Gladiator Jackpot is a Playtech game which is based on the famous film of 2000 starring Russell Crowe and Joaquin Phoenix. Wild symbols, scatters, and free spins, as well as video clips make it an exciting title to play on your desktop or mobile, but if you want to take home the biggest reward of all (the PJP), you’ll need to trigger the bonus game with three helmet symbols on Reels 2, 3, and 4. Find nine gold helmets in the bonus game, and the jackpot’s all yours!

Where to play Gladiator Jackpot slot

Beach Life

Enjoy some fun in the sun with Playtech’s Beach Life jackpot slot, and you could be booking a dream holiday for real. To fly home with the game’s PJP, you’ll need to land five sun symbols on the twentieth payline.

Where to play Beach Life jackpot slot

The Odds of Winning

Your chances of winning with a jackpot slot are affected not only by chance, but also by the game’s volatility and RTP (Best Payout Slots). Volatile jackpot slots are higher risk than low-volatility slots as they tend to award larger pay-outs on a less frequent basis. The RTP is the Return to Player Rate, and it indicates how great the house edge is. The higher the RTP, the better for the player.