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Best Slots With Bonus Games (Most Free Spins)

Best Slots With Bonus Games (Most Free Spins)

Land-based and online casinos tend to have an extensive selection of slot games due to their popularity among players. Each gambler may have a different reason for playing slot games, but they can almost always agree that the best slots are the ones that offer bonus games, especially free spins bonuses!

If you are searching for some of the best slots with bonus games (free spins in particular), continue reading this Clover Casino blog post to find out which slot games offer some of the best bonuses, how they work and if you can find them online.

How Do Bonus Rounds Work? 

Bonus rounds are special features offered in some slot games that offer additional winning potential. They are typically triggered by making a specific combination of symbols in a certain order. 

For example, triggering a free spins bonus typically requires landing 3 or more bonus or scatter symbols anywhere on the game grid or as specified by the game's paytable. 

Once triggered, they typically take the players to a new screen where they spin the reels or, in some cases, a wheel for possible prizes. Each bonus feature can be different depending on the game. Most games will offer a free spins feature or a variation of free spins, win multipliers, cash prizes or mini-games with possible jackpots. 

If you activate a free spins bonus, you may get a predetermined number of spins or play a mini-game to determine how many spins you receive. Others have an undefined number of free spins and a defined way to end the feature, potentially awarding an unlimited number of free spins if you have not met the end-feature requirements. 

In essence, each bonus game's mechanics vary depending on the slot game of choice. For example, the Big Bad Bison slot offers a free spins bonus feature that can be triggered by landing 3 gold coin scatter symbols anywhere on the reels on the same spin. You may potentially even get extra free spins if 2+ scatters land during the feature!

On the other hand, the Gladiator Legends slot by Hacksaw offers a respins bonus that can reset to the initial number of respins any time a “VS” symbol lands during the bonus feature.

To find out more about a specific slot bonus feature and how it works, you can refer to the game rules or paytable.

Best Slots With Bonus Games

Deciding which slot game that offers the best bonus feature ultimately comes down to personal preference, but we can help you make that decision by listing a few of the slot games that are popular among players:

Thunderstruck II

The Thunderstruck II slot by Microgaming is revered for its excellent graphics and selection of free spins bonus games, collectively called the Great Hall of Spins. There are 4 types of free spin bonuses, which can potentially be triggered in a sequence. 

The free spins features include Valkyrie, Loki, Odin, and Thor Free Spins, awarding 10, 15, 20, and up to 25 free spins. Each free spins feature can be triggered by landing at least 3 Mjolnir scatter symbols, and each bonus comes with a different modifier or win multiplier.

However, you must trigger the free spin feature a number of times to access the next. For instance, you can unlock the Thor free spins bonus from the 15th trigger.

Other than these bonus features, this slot game offers 243 win ways, a Return to Player rate of 92.05% and a maximum potential payout of up to 8,100x your stake!

Dead or Alive

Dead or Alive is a cowboy Wild West-themed slot game by NetEnt. It features a 5x3 grid with 9 paylines and a maximum potential win of up to 13,888x your stake. 

You can spin the reels for bets ranging from £0.09 up to £3.60 a spin, and you may also potentially land 3 or more scatter symbols to activate this game's only bonus feature, the free spins bonus!

Any successful wins achieved in the free spins bonus are doubled! Additionally, you could also land sticky wilds, potentially increasing your chances of landing winning combinations. 

Pink Elephants 2

Pink Elephants 2 was created by Thunderkick. It is playable for bets ranging from £0.10 up to £5.00 a spin. It also offers a decent RTP rate of 96.13% and a top possible prize worth up to 10,000x your wager!

The free spins bonus can be unlocked if you land 3+ scatters in a spin. The number of spins you win depends on the number of activating scatters.

Vikings Go Berzerk 

Vikings Go Berzerk is a visually striking slot game by Yggdrasil Gaming. It features a 5x4 grid with 25 paylines and a maximum payout potential of up to 4,000x your stake.

Vikings Go Berzerk is a feature-filled slot game. The free spins feature can be triggered by landing 3 or more scatter symbols in a spin or by completely filling a Viking’s rage metre.

Before the bonus begins, a random modifier is awarded.

Book of Dead

Book of Dead is a Play'n GO slot game with one bonus feature: the free spins bonus. It is playable across a 5x3 reel grid with 10 paylines. 

The free spins feature can be triggered by landing 3+ tomb scatters in a spin.

Before the free spins feature, the game selects an expanding symbol at random. If this symbol lands a certain number of times, it can expand to cover the entire reel, potentially triggering rewards of up to 5,000x your stake!

To find out more about the game’s symbols, you can refer to the Book of Dead paytable.

Aztec Bonanza

Aztec Bonanza is a Pragmatic Play slot game offering up to 7,776 winning ways and a free spins bonus feature. 

During the base game, any winning combinations can trigger the tumble feature, where the winning symbols are removed and replaced by new symbols. For every second tumble, you can unlock new winning ways and extra features such as mystery and colossal symbols. 

The free spins bonus can be triggered if all the 7,776 winning ways have been unlocked.

Online Slots With The Most Free Spins

Below are some of the slot games you may find in online casinos in the UK, such as Clover Casino.

Please be advised that this list is by no means exhaustive. We are listing only a few. Online casinos like Clover Casino can offer hundreds of thousands of slot games!


The Montezuma slot game is an Aztec-themed slot game by WMS. The free spins feature can be triggered by landing at least 3 scatter symbols in a spin. This will then take you to a wheel, which will spin to determine your number of free spins. You could potentially win up to 25 free spins!

Additionally, at the start of each bonus spin, a wheel will spin above the reels to determine a random win multiplier of up to 10x!

Landing 2+ scatters in a spin can award extra free spins!

Raging Rhino

Created by WMS, Raging Rhino is an online slot game with up to 4,096 ways to win. It also has a free spins bonus that can be triggered by landing 3+ scatters in a spin!

For example, landing 3, 4, or 5 scatters in a spin can win you 15, 20 or up to 50 free spins!

Fruit Shop

The Fruit Shop slot is a classic fruit game created by NetEnt. It has 5 reels and 3 rows with 15 paylines. 

The free spins feature can be triggered if you land a winning combination with identical fruit symbols. If activated, any winning combinations formed during the free spins bonus can award extra free spins according to the game’s paytable.

In addition, any winning bet lines formed during the free spins bonus can pay x2!

Gods of Giza

The Gods of Giza slot game has 5 reels and 5 rows with 20 paylines. This slot game offers Depleting Wilds, a Tumble feature, a free spins bonus, and a maximum win potential of up to 5,000x your stake!

The Free Spins feature is activated by landing 3+ scatters. If this happens, it awards 10 spins for 3 scatters and an additional 5 free spins for each extra activating scatter symbol.

So, if you land 5 scatter symbols, you trigger 20 free spins!

Potentially, up to a maximum of 25 scatters can land, which could win you up to 120 free spins!

John Hunter and the Book of Tut Respin

John Hunter and the Book of Tut Respin is a well-designed adventure-themed slot game by Pragmatic Play. The grid is made up of 5 reels and 3 rows with 10 paylines. Features on offer include mystery symbols and a free spins bonus. 

If triggered, the free spins feature awards 10 free spins that can potentially be retriggered an unlimited number of times. 

Slots With Bonus Rounds FAQs

Can You Buy The Bonus In Slots?

No, you cannot buy bonuses in UK slot games. Bonus Buying does not align with the UK Gambling Commission’s (UKGC) mission to promote responsible gambling.

Can You Win Big With Free Spins?

Yes, you may potentially win big during a free spins bonus. In fact, most slot games typically offer their biggest potential wins via the free spins bonus. However, this may differ from slot to slot.

How Do You Trigger Free Spins On Slot Machines?

The mechanisms for triggering free spins bonuses can differ for each slot game. You typically have to land a specific number of scatter or bonus symbols to trigger a free spin feature. But again, this may vary for each game. To learn more about a specific slot's features and how you may trigger them, you can refer to the game rules and or paytable.

Are There Any Slots Where You Can Buy The Bonus?

No, there are no real money slots where you can buy the bonus in the UK due to UKGC regulations.

*All values (Bet Levels, Maximum Wins, etc.) mentioned in relation to these slot games are subject to change at any time.