Expected Reading Time | 4 Minutes

Last Updated: December 31, 2023

Written by Yvonne Greenwood

There are tens of thousands of different online slots, so it shouldn’t be surprising that some are much better than others. If you are on the lookout for something more than an old-fashioned 3×3 classic fruity slot, then you have come to the right place. Slots bonus rounds offer a fun and exciting alternative to just clicking the spin button and hoping you match the symbols on the reels. In addition, they offer greater potential for huge payouts. This is a fairly complicated as far as online slots mechanics go, our guide will help you to navigate your way around the best online slots to play with bonus rounds.

In this SlotsHawk guide, we will take a look at some of the best and most popular slots with bonus rounds. This means online slots which are offering the best quality bonus rounds which can be triggered when playing them.

In the table below, you will find the online slot machines which we feel are the best and most exciting to play due to their fantastic bonus rounds. We have also included the info on how to trigger each of the specific slots’ bonus game. Following the table, we have written mini reviews of each of the slots where we reveal the advantages and disadvantages as well as all of the features of the games.

SLOT GAMEHOW TO TRIGGER THE BONUS ROUNDWHERE TO PLAY
Legends of the Colosseum Megaways4 bonus symbols land simultaneously on reels 2,3,4 and 5Playzee Casino
El Paso GunfightLand 3 scatters on the middle reelsAll British Casino
Rainbow Riches3 or more scatter symbols landing on the reels (3 different bonus rounds available)Rainbow Riches Casino
Dead or AliveLand 3+ scatter symbols on the reelsHyper Casino
Gonzo’s Quest MegawaysLand 3 or more Free Fall symbolsLuckster Casino
Rasputin Megaways3 or more scatter symbols in any position unlocks one of two bonus rounds (player choose which bonus game to play)Skol Casino
Wheel of Fortune Megaways3-6 scatter symbols anywhere on the reels unlock the bonus gameAll British Casino
Mayan Wild MysteryLand 3 or more scatter symbols on the reelsPlayOJO Casino
Undead FortuneLanding 3 or more Curse or Tomb symbols will trigger one of two bonus gamesPlayzee Casino
Secrets of the Phoenix MegawaysLand three or more scatter symbolsVirgin Games

BEST SLOTS WITH BONUS ROUNDS IN 2024

There are thousands of online slots which offer bonus games. Bonus rounds are popular as they present a challenge to players to try to trigger them. We invested a lot of time and effort into researching the top 10. Read on to discover our picks of the top ones.

Here is our showcase of slots with bonus games:

1. LEGENDS OF THE COLOSSEUM MEGAWAYS (RTP: 96.12%)

slots with bonus rounds

We regard Legends of the Colosseum Megaways as the online slot with the best bonus round in 2024. Released in January 2023, this is a new slot game with both a high potential payout (up to 10,000x) and an above average RTP of 96.12%.

The quality bonus game in Legends of the Colosseum Megaways is with a wheel of fortune whereby once the bonus game is triggered, it will activate the Wheel of Fortune which will award the number of free spins, win multiplier and level. It is also possible to spin the Wheel of Fortune again using the games repsins. The number of free spins awarded in the bonus round are 5-14, level can be from 1-9 and the win multiplier will be between 2x and 25x. During the bonus round, if you collect up to 3 Golden Coin symbols you will upgrade the level by 1 and be granted 2 additional free spins.

This slots unique symbols and general design help to increase the pleasure of playing and triggering the bonus game.

Features:

  • Free spins
  • Respins
  • Bonus game
  • Mystery symbols
  • Wild symbols
  • Scatter symbols

Play at: Playzee Casino

4.3 rating
Get a :
100% Deposit Bonus up to £300 + 100 Bonus Spins on Starburst
18+. Min deposit £20. New players only. T&C's Apply and BeGambleaware #ad
T&Cs Apply
New customers only

18+. New players only. Min Deposit £20. Max Bonus Bet £5. Winnings from spins capped at £50. 100 Zee Spins valid on Starburst (first 10 credited immediately upon first deposit; rest credited at 07:00 GMT at 10/day). Spins must be used by 23:59 GMT of the day on which they are credited to player account, any unused shall be removed. Bonus funds must be used within 30 days. Bonus funds are separate to Cash funds, and subject to 35x wagering (bonus + cash). Full terms apply. BeGambleAware.org.

2. EL PASO GUNFIGHT (RTP: 96.05%)

El Paso Gunfight - Best bonus round slot

With a brilliantly catchy soundtrack. El Paso Gunfight takes players back to the American Wild West. As well as the opportunity to utilise the X Nudge feature, players will also have the opportunity to explore and play through El Paso Gunfight’s fun and unique bonus game.

Three different bonus game rounds are available depending on where on the reels the scatter symbols are landed. Gunfight Spins, Deputy or Marshal Gunfight Spins and Drunken Gundfiguth&r Spins (yes, the misspelling is on purpose) are the three games, all of which offer different outcomes/rewards.

Developed by NoLimit City, El Paso Gunfight has a lot of appeal and does not get tedious even after several hours of gameplay.

Features:

  • Bonus games
  • Free spins
  • Gunfight Spins
  • Deputy or Marshal Gunfight Spins
  • Drunken Gundfiguth&r Spins
  • Scatter symbols
  • Multiplier symbols
  • Wild symbols
  • Respins

Play at: All British Casino

Get a:
100% Deposit Bonus up to £100 + 10% Cashback
18+. Min deposit £20. New players only.T&C's Apply and BeGambleaware #ad
T&Cs Apply
New customers only

New customers only, min deposit £20, wagering 35x, max bet £5 with bonus funds. Max bonus is 100% up to £100. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Cashback is cash with no restriction

3. RAINBOW RICHES (RTP: 95%)

online slots with the best bonus games (Rainbow Riches)

Three or more scatter symbols landing on the reels will trigger one of three different bonus games in the Rainbow Riches slot from Barcrest. There are three different symbols on the scatter symbols in Rainbow Riches, matching three of one type will land you into the games respective bonus round. The three bonus games are Road To Riches, Wishing Well and Pots of Gold.

All three of the bonus games are top quality, but we particularly love the Road to Riches round. Rainbow Riches is also a great game for players of all bank rolls thanks to its minimum bet of £0.01 and maximum bet of £400. For more information on Rainbow Riches, see our Rainbow Riches slots guide.

Features:

  • Bonus games
  • Free spins
  • Wild symbols
  • Scatter symbols
  • Multipliers
  • High roller slot
  • Minimum bet slot

Play at: Rainbow Riches Casino

Get :
Stake £10 Get 30 Free Spins on Rainbow Riches (No Wagering Requirements)
18+. Min deposit £10. New players only.T&C's Apply and BeGambleaware #ad
T&Cs Apply
New customers only

New members only, must opt in. Min £10 deposit & wager. 30 day expiry from deposit. 18+. Extra Spins: on Rainbow Riches. 1p coin size, max lines. Bingo: Advertised ticket value based on £1 tickets. Game availability & restrictions apply. **£10 lifetime deposit for Daily Free Game. #AD BeGambleAware.org.

4. DEAD OR ALIVE (RTP: 96.82%)

Dead or Alive - quality bonus round slot

One of the most popular online slots of all time, Dead or Alive can be found in the libraries of most online slots sites in the United Kingdom and for good reason. Dead or Alive is a classic and offers one of the greatest every slots bonus games. Landing three scatter symbols on the reels triggers the bonus round in which the player receives 12 free spins. However, the bonus game and be retriggered which include sticky wild symbols too.

The maximum payout in the bonus game is 12,000x the wager too. Despite being released over a decade ago, Dead or Alive remains one of the most played online slot machines in 2024.

Features:

  • Free spins
  • Bonus game
  • Multipliers
  • Scatter symbols
  • Wild symbols
  • Autoplay
  • High variance
  • Original soundtrack

Play at: Hyper Casino

4.8 rating
Get a :
100% Deposit Bonus up to £100
18+. Min deposit £10. New players only.T&C's Apply and BeGambleaware #ad
T&Cs Apply
New customers only

#AD New players only, min deposit £10, wagering 45x, max bet £5 with bonus funds, 100% up to £100 bonus on 1st deposit, 50% up to £200 on 2nd deposit. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Full T&C’s apply

5. GONZO’S QUEST MEGAWAYS (RTP: 98%)

Gonzos Quest Megaways - best bonus round slot

Featured on our list of the best Megaways slots, Gonzo’s Quest Megaways also deserves huge appreciation for its rewarding bonus game. A maximum potential payout of 21,000x can be won during the bonus game which is triggered when the player lands three or more Free Fall symbols on the slots reels. The bonus game offers 9 free spins to players who trigger it and there are plenty of other features available in the bonus game too including avalanche multipliers and the Earthquake feature.

Gonzo’s Quest Megaways is regarded as one of the greatest online slot games of all time. You will also find Gonzo’s Quest Megaways on our guide to high RTP slots games due to its RTP of 98%.

Features:

  • Free spins
  • Bonus game
  • Multipliers
  • Respins
  • Avalanche multipliers
  • Earthquake feature
  • Sticky wild symbols
  • Wild symbols
  • Scatter symbols
  • Cascading reels
  • Unlimited paylines
  • Autoplay

Play at: Luckster Casino

4.8 rating
Get :
100% Deposit Bonus up to £200 + 100 Free Spins
18+. Min deposit £10. New players only.T&C's Apply and BeGambleaware #ad
T&Cs Apply
New customers only

18+. New players only. One offer per player. Min Dep £10. 1st Dep offer is 100% up to £200 + 100 Bonus spins. Spins expire after 24 hours of being issued. Bonus funds separate to Cash. Wager Req of 35x Deposit + Bonus apply. Terms Apply. BeGambleAware.org.

6. RASPUTIN MEGAWAYS (RTP: 96.68%)

best bonus round slot - (Rasputin Megaways)

Newly released in December 2022, Rasputin Megaways offers an original Russian theme as the game brings players into Moscow. The bonus games in Rasputin Megaways awards payouts of up to 68,180x. There are two separate bonus games; Big and Strong and Ecstasy and Fire, both of which offer different rewards and features. Three or more scatter on any of the reels awards the bonus games and the player can pick which bonus game to play.

Some of the advantages in Rasputin Megaways includes its high max potential payout and above average RTP. Also, the fact that you can pick the bonus game to play is a real positive.

Features:

  • Free spins
  • Almost 3 million ways to win
  • Two bonus games available
  • Bonus buy feature
  • Unlimited win multipliers
  • Scatter symbols
  • Wild symbols
  • Extending reels
  • Megaways mechanic

Play at: Skol Casino

4.3 rating
Get a:
100% Deposit Bonus up to £100 + 100 Bonus Spins
18+. Min deposit £10. New players only.T&C's Apply and BeGambleaware #ad
T&Cs Apply
New customers only

18+. One bonus offer per player. Min deposit £10. Max bonus bet £5. Bonus funds must be used within 30 days & bonus spins within 10 days. Spins valid on Starburst only. Bonus funds separate to Cash funds and subject to 35x wagering

7. WHEEL OF FORTUNE MEGAWAYS (RTP: 96.46%)

slots with the best bonus round - (Wheel of Fortune Megaways)

If any online slot should have a fantastic bonus game its this one, right? Wheel of Fortune Megaways is themed around the blockbuster gameshow of the same name. Developed by IGT, Wheel of Fortune has plenty of advantages, no more so than its bonus game which is a mixture of fun graphics, unique gameplay and high payout value.

3,4,5, or 6 scatter symbols on the reels will trigger the bonus game where the maximum payout of 80,150x can be won. During the bonus game, you can retrigger the free spins which gives the possibility of unlimited payouts. The only disadvantage we can see here is that the graphics are a little dated and are not the best too look at. You will also find Wheel of Fortune Megaways on our guide to the online slots with high payouts.

Features:

  • Free spins
  • Respins (Retrigger)
  • Bonus game
  • Multipliers
  • Scatter symbols
  • Wild symbols
  • Cascasing reels
  • Megastacks
  • Extending reels
  • 1 million paylines

Play at: All British Casino

Get a:
100% Deposit Bonus up to £100 + 10% Cashback
18+. Min deposit £20. New players only.T&C's Apply and BeGambleaware #ad
T&Cs Apply
New customers only

New customers only, min deposit £20, wagering 35x, max bet £5 with bonus funds. Max bonus is 100% up to £100. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Cashback is cash with no restriction

8. MAYAN WILD MYSTERY (RTP: 96.27%)

Mayan Wild Mystery - good bonus round slot

Credited as the online slot game with the best payout (125,000x), Mayan Wild Mystery is a game which is not found at many online casinos in the UK, but is certainly worth finding. On top of the huge maximum potential payout, the god theme is great and the bonus game is a joy to behold, in our opinion.

Landing three or more scatters on any of the reels will trigger the bonus round which is where the giant payouts can be won. Of course, the main advantage of the bonus game here is the high payout figures.

Features:

  • Free spins
  • Bonus game
  • Wild symbols
  • Scatter symbols
  • Multipliers
  • Autoplay
  • Mobile friendly

Play at: Playojo Casino

4.8 rating
Get a :
Deposit £10 Get 50 Book of Dead Free Spins (No Wagering Requirements)
18+. Min deposit £10. New players only.T&C's Apply and BeGambleaware #ad
T&Cs Apply
New customers only

18+ Only. 50 Deposit Free Spins on Book of Dead. Min. deposit is £10. New players only. Game: Book of Dead. Spin Value: £0.10. OJO’s Rewards and Game Play policy applies. T&C's Apply

9. UNDEAD FORTUNE (RTP: 94.40%)

online slot machine with bonus round (Undead Fortune)

Horror themed slots are becoming more and more common and Undead Fortune is perhaps the horror slot game with the best bonus round. Landing three or more Curse or Tomb symbols will trigger one of two of Undead Fortune’s bonus games. Both bonus games offer a max payout of 10,000x and come with scary graphics and a great soundtrack.

Undead Fortune is the only Hacksaw Gaming slot on our list of the online slot machines with the best bonus games, but we believe this is a top quality slot game.

Features:

  • Duel Reels
  • Walking Duels
  • Expanding Duels
  • Bonus rounds
  • Scatter Symbols
  • Wild Symbols
  • Multipliers
  • Special Symbols

Play at: Playzee Casino

4.3 rating
Get a :
100% Deposit Bonus up to £300 + 100 Bonus Spins on Starburst
18+. Min deposit £20. New players only. T&C's Apply and BeGambleaware #ad
T&Cs Apply
New customers only

18+. New players only. Min Deposit £20. Max Bonus Bet £5. Winnings from spins capped at £50. 100 Zee Spins valid on Starburst (first 10 credited immediately upon first deposit; rest credited at 07:00 GMT at 10/day). Spins must be used by 23:59 GMT of the day on which they are credited to player account, any unused shall be removed. Bonus funds must be used within 30 days. Bonus funds are separate to Cash funds, and subject to 35x wagering (bonus + cash). Full terms apply. BeGambleAware.org.

10. SECRETS OF THE PHOENIX MEGAWAYS

bonus rounds in slot game (Secrets of the Phoenix Megaways)

An exclusive slot to Gamesys online casinos, Secret’s of the Phoenix Megaways is a slot machine full of payout potential which also includes a fun and sophisticated bonus game which is triggered when landing three or more scatter symbols on the reels. The game is full of colour as well as numerous modern features including unlimited multipliers and cascading reels.

The main reason we have included Secret’s of the Phoenix Megaways on this list is due to the fact that you can sometimes claim 30 free spins with no wagering requirements on this slot machine. Simply see our guide to no wagering slots in 2024 for more information.

Features:

  • Cascading wilds
  • Phoenix wilds
  • Unlimited multipliers
  • Free spins
  • Respins
  • Multipliers
  • Scatters
  • Wilds

Play at: Virgin Games

4.5 rating
Get :
Stake £10 Get 30 Free Spins on Double Bubble (No Wagering Requirements)
18+. Min deposit £10. New players only.T&C's Apply and BeGambleaware #ad
T&Cs Apply
New customers only

18+. New players only. One offer per player. Min Dep and wager £10. Spins value 1p. Free spins on: Double Bubble. Spins expire after 30 days. Terms Apply. BeGambleAware.org. #ad

WHERE TO PLAY SLOTS WITH THE BEST BONUS ROUNDS

The SlotsHawk team is here to help you find the best online casinos and slot sites where you can play the slots with the best bonus rounds. Below, we have picked out four excellent online casinos in the UK where you can play all of the slot games on this page:

  1. All British Casino – Catering specifically to British casino players, All British Casino offers over 1,000 different slots including the majority of the slots listed on this page.
  2. Playzee Casino – A top quality online slot site with a great player loyalty scheme, Playzee specialises in slots and is highly regarded by SlotsHawk.com.
  3. Skol Casino – Launched in 2022, Skol is one of the newest slot sites in the UK and caters to online slots players of all experiences.
  4. Luckster Casino – With a fun and unique Irish theme, Luckster casino has recently partnered up with SlotsHawk and offers players a variety of excellent slots and casino games.
4.5 rating
Get 100% up to £100 at All British Casino + 10% Cashback
T&Cs Apply
New customers only

New customers only, min deposit £20, wagering 35x, max bet £5 with bonus funds. Max bonus is 100% up to £100. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Cashback is cash with no restriction
4.3 rating
Get a 100% Deposit Bonus up to £300 + 100 Bonus Spins
T&Cs Apply
New customers only

18+. New players only. Min Deposit £20. Max Bonus Bet £5. Winnings from spins capped at £50. 100 Zee Spins valid on Starburst (first 10 credited immediately upon first deposit; rest credited at 07:00 GMT at 10/day). Spins must be used by 23:59 GMT of the day on which they are credited to player account, any unused shall be removed. Bonus funds must be used within 30 days. Bonus funds are separate to Cash funds, and subject to 35x wagering (bonus + cash). Full terms apply. BeGambleAware.org.
4.3 rating
Get a 100% Deposit Bonus up to £100 + 100 Bonus Spins
T&Cs Apply
New customers only

18+. One bonus offer per player. Min deposit £10. Max bonus bet £5. Bonus funds must be used within 30 days & bonus spins within 10 days. Spins valid on Starburst only. Bonus funds separate to Cash funds and subject to 35x wagering
4.8 rating
Get 100% Deposit Bonus up to £200 + 100 Free Spins
T&Cs Apply
New customers only

18+. New players only. One offer per player. Min Dep £10. 1st Dep offer is 100% up to £200 + 100 Bonus spins. Spins expire after 24 hours of being issued. Bonus funds separate to Cash. Wager Req of 35x Deposit + Bonus apply. Terms Apply. BeGambleAware.org.

CONTRIBUTORS

Yvonne Greenwood

Greetings, I’m Yvonne Greenwood

Yvonne Greenwood is our talented writer. In the office she goes by the nickname ‘The Machine’ because of her ability to always smash out excellent and relevant articles for our readers at SlotsHawk.com.

Content writer since 2020