Jan 7, 2025

Slots

Which Slot Game Has the Best Bonus in 2025

Do you want to go slot bonus hunting in 2025? Then you've come to the right place. Here, you can find our picks for the best bonus slots.

Most of the online slots have bonus features.
Best bonus slots are fun to play and can win you a lot of real money.
Bonuses in slots are free spins, multiplier wins, pick-and-win or special bonus rounds.
Check out the 5 best bonus slot games.

Slot Games with Best Bonuses - Key Takeaways

🏆 Best bonuses have Candy Blitz Bombs, Buffalo King, Dead or Alive 2, Big Bass Bonanza - Reel Action and Dog House slots.

🏆 We chose these slots because they have the potential for extremely high wins during the bonus features and are great choices for slot bonus hunting.

🏆 All these slot games are widely popular among players in online casinos in 2025

Candy Blitz Bombs Slot

Candy Blitz Bombs slot game from the extremely popular Candy Blitz series made by Pragmatic Play. I personally like even the original game, but the bonus game in this one is outstanding. But let's take a look at the basics of this sweet, sweet game. You can look forward to the grid of a 5x6 screen full of candies and sweets. There are no winning lines like in most slots, but you win whenever at least 8 identical symbols appear on reels.

The base game offers 2 special features:

Tumble
Multiplier Reel

When you win, the winning symbols are removed from the reels and replaced with others to allow you to win again. All the wins are multiplied by the number on Multiplier Reel which increases by 1 after every Tumble feature. For example, if you win 4x times on one spin, the overall win is multiplied by 4. After that, the Multiplier Reel is reset back to number 1.

Also, there are Bomb symbols with random multipliers up to 500x.

Candy Blitz Bombs demo slot basic info
RTP	96.49%
Software provider	Pragmatic Play
Min bet	$0.20
Max bet	$240
Free spins round	Yes
Wild symbols	No
Max Win	5000x
Bonus Buy	Yes

How Bonus in Candy Blitz Bombs Work

A bonus feature in Candy Blitz Bombs is free spins. They are triggered by at least 4 scatter symbols in this order:

4 scatter symbols - 10 free spins
5 scatter symbols - 12 free spins
6 scatter symbols - 14 free spins

The base is more than generous right with all the multipliers right? But wait for this. In the free spins bonus game, the Multiplier Reel does not reset back to one. It adds up. With every win and every Bomb symbol your wins are bigger and bigger. You can easily have every win multiplied by 100x and more every turn.

Just see for yourself, you can try Candy Blitz Bombs in a demo and simply use the Buy Free Spins feature.

Play Candy Blitz Bombs demo for free

Buffalo King Slot

If you are a frequent player in online casinos, you surely have at least seen this one. Buffalo King from Pragmatic Play. It is a pretty straightforward slot game with 4096 ways to win. There are wild symbols and bonus symbols in the main game. Which is quite normal.

But the Free spins are something else. According to the Reddit forum, the Buffalo King is the slot with the longest bonus.

Buffalo King slot basic info
RTP	96.06%
Software provider	Pragmatic Play
Min bet	$0.40
Max bet	$60
Free spins round	Yes
Wild symbols	Yes
Max Win	97350x
Bonus Buy	Yes

How Bonus in Buffalo Kings Work

You trigger the free spins with at least 3 bonus symbols appearing on reels. If you hit more symbols, you win more free spins:

6 Bonus symbols - 100 free spins
5 Bonus symbols - 25 free spins
4 Bonus symbols - 15 free spins
3 Bonus symbols - 8 free spins

100 free spins are wild, right? But wait, the free spins can be retriggered as many times as you are lucky. If you hit at least 2 bonus symbols during the free spins, you are winning additional free games:

6 Bonus symbols - 100 free spins
5 Bonus symbols - 25 free spins
4 Bonus symbols - 15 free spins
3 Bonus symbols - 8 free spins
2 Bonus symbols - 5 free spins

That is not. During the free spins rounds, all wild symbols have a multiplier of up to 5x.

Play Buffalo King demo for free

Dead or Alive 2 Slot

Welcome to Wild West with the great online slot Dead or Alive 2 made by NetEnt. This is one of the most popular slots with a Western theme and it's all because of the great free spins feature. Check out the reels for the 3 scatters and then choose one of the bonuses you actually like. Great, right?

Dead of Alive 2 slot basic info
RTP	96.82%
Winning lines	9
Software provider	NetEnt
Min bet	€0.09
Max bet	€9
Free spins round	Yes
Wild symbols	Yes
Max Win	100 000x
Bonus Buy	No

How Bonus in Dead or Alive 2 Work

Every time a free spins feature is triggered by at least 3 scatter symbols. You can choose from one of the three possible free spins bonus rounds. Every round has a unique bonus feature including sticky wilds, multipliers or extra free spins. Each round has different volatility. Do you want to win less but more often? Choose the Train Heist feature. Are you feeling hungry for the big win? High Noon feature is your way to go.

Train Heist Free Spins

This one’s got the lowest volatility of the bunch. A Wild Counter shows up above the reels, and every time you land a Wild symbol, the multiplier goes up by 1, plus you snag an extra free spin. Keep stacking those Wilds because the multiplier can climb all the way to 16x!

Old Saloon Free Spins

Here we’re talking medium volatility. You start with a 2x multiplier, and if you manage to land Sticky Wilds on each reel, you’ll bag 5 or more free spins.

High Noon Free Spins

Brace yourself—it’s the highest volatility option! This mode comes with Sticky Wilds that pack 2x and 3x multipliers. Here’s the kicker: if you land multiple Wilds in one spin, the values stack, giving you a big boost! Plus, get a Sticky Wild on every reel, and you’ll score 5 extra free spins.

I personally always aim for the High Noon. And what would be your bonus of choice?

Play Dead or Alive 2 demo for free

Big Bass Bonanza - Reel Action Slot

Big Bass Bonanza is a well-known brand of slots made by Pragmatic Play. I can promise you that, if you visit any online casino, you will see at least one of these slots in the "Most popular slots" section. But, why have we chosen this particular one for our list of slot games with the best bonuses?

All of the Big Bass slots have pretty much the same fishing theme and distinguishable graphics. Not the top shelf, if you ask me, but somewhat good. All of them have a similar free spins bonus, but the Reel Action chapter is superb.

Big Bass Bonanza - Reel Action basic info
RTP	96.50%
Software provider	Pragmatic Play
Min bet	$0.10
Max bet	$250
Free spins round	Yes
Wild symbols	No
Max Win	21,000x bet
Bonus Buy	Yes

How Bonus in Big Bass Bonanza - Reel Action Work

Want to score some Free Spins? Just land 3 or more Scatter symbols to trigger the fun:

5 Scatters = 20 spins
4 Scatters = 15 spins
3 Scatters = 10 spins

Here’s where it gets exciting: Every Wild symbol that pops up collects the values of all those shiny Money symbols on the screen. Collect 4 Wilds and boom—you retrigger the feature with 10 more spins and an upgraded multiplier for collecting Money symbols:

1st retrigger = 2x multiplier
2nd retrigger = 3x multiplier
3rd retrigger = 10x multiplier

After 3 retriggers, it stops—so make those spins count! Oh, and here’s a cool twist: If there’s just 1 Wild symbol left on the screen at the end of a spin, some random Money symbols might still appear.

Play Big Bass Bonanza - Reel Action demo for free

Dog House Slot

Who let the dogs out? It is time to put them back in the Dog House. Yes, I know another Pragmatic Play slot, but you will see, the bonus game in this slot game is really great.

The Dog House online slot is an inconspicuous game with funny dog pictures, 20 winning lines and a wild symbol with a random multiplier. And of course free spin rounds.

Dog House demo slot basic info
RTP	96.51%
Winning lines	20
Software provider	Pragmatic Play
Min bet	€0.2
Max bet	€100
Free spins round	Yes
Wild symbols	Yes
Max Win	Unknown
Bonus Buy	No

How Bonus in Dog House Work

Before the Free Spins Round kicks off, you’ll get a random number of free spins. How? A 3x3 grid spins automatically, and each cell shows a number between 1 and 3. Add those up, and that’s your total spins for the round. So it can be from 9 to whooping 27.

During the round:

Any Wilds landing on reels 2, 3, or 4 turns into Sticky Wilds—they’re not going anywhere!
Each Sticky Wild gets a random multiplier when it lands, and it sticks with that multiplier until the round wraps up.

And sticky wilds with a multiplier is why we have chosen the Dog House slot as one of the best bonus slots in 2025. If you got lucky, the winnings are just awesome.

Play Dog House demo for free

What kind of Bonus Features are in Slot Games

Free Spins

A classic! Land a certain number of Scatter symbols (usually 3+) to trigger a round of free spins. During these, you can win without placing additional bets. Many free spin rounds come with extras like:

Multipliers: Boost your winnings by 2x, 3x, or more.
Sticky Wilds: Wilds that stay locked in place for the entire round.
Retriggers: Land more Scatters during the round to grab even more spins.

Wild Symbols

These are your best friends—they substitute for other symbols to help complete winning combinations. Wilds come in all flavors:

Expanding Wilds: Cover the whole reel for maximum wins.
Stacked Wilds: Appear in stacks to increase winning potential.
Sticky Wilds: Stay in place for several spins or the entire bonus round.
Multiplying Wilds: Add a multiplier to wins they’re part of (e.g., 2x, 3x).

Scatter Symbols

These often trigger bonus rounds (like Free Spins) and sometimes pay even if they’re not on consecutive reels. Keep an eye out for them!

Multipliers

Boost your payouts by multiplying your winnings by 2x, 3x, or even up to 100x. They can apply to specific rounds, symbols, or even entire games.

Bonus Games

These are mini-games triggered by landing specific symbols (often Bonus or Scatter symbols). They’re interactive and can include:

Pick-and-Win: Choose from multiple options to reveal prizes like cash or free spins.
Wheel of Fortune: Spin a wheel to win multipliers, spins, or jackpots.
Skill Games: Rare but fun; they let you use a bit of strategy to influence your prize.

Cascading Reels (or Avalanche Feature)

Instead of spinning, symbols drop from above. Winning combinations disappear, making room for new symbols to cascade down, creating chain reactions and multiple wins in one spin.

Megaways™

A special reel system where the number of symbols on each reel changes with every spin. This creates hundreds or even thousands of ways to win.

Progressive Jackpots

The holy grail! A portion of every player’s bet goes into a jackpot pool, which grows until one lucky player hits it big. Some slots have local jackpots (specific to one casino), while others are network-wide for even bigger prizes.

Gamble Feature

After a win, some slots let you gamble your winnings for a chance to double or quadruple them. It’s usually a simple game like guessing a card color or suit.

Buy Feature

Impatient? Many modern slots let you buy your way into the bonus round for a set cost, skipping the base game entirely.

Collect Features

During certain spins, special symbols like coins, gems, or Money symbols appear with instant cash prizes or bonuses. Collect them for extra wins or to trigger a bonus game.

Mystery Symbols

These symbols transform into matching symbols when they land, increasing your chances of a big win.

Hold and Spin

Triggered by landing a specific set of symbols, this feature locks those symbols in place while you get several respins to try and add more. If you fill the grid or hit certain thresholds, you’ll get a huge payout or jackpot.

Cluster Pays

Instead of traditional paylines, wins come from forming clusters of matching symbols. The more you connect, the bigger the payout.

Walking Wilds

Wilds that “walk” across the reels, triggering respins as they move. They disappear when they move off-screen.

Bonus Wheel

Spin a wheel to determine your prize—anything from cash rewards to jackpots, multipliers, or entry into other bonus features.

Time-Limited Bonuses

Some games have features that activate only during specific times or after a certain number of spins. These can include larger payouts or guaranteed bonus rounds.

The Best Slot Bonuses for Bonus Hunting

When it comes to bonus hunting in slot games, the goal is simple: find slots with the most exciting and rewarding in-game features and focus on triggering them. This isn’t about chasing free casino promotions—it’s about hunting down slots with features that can deliver the biggest thrills and payouts. Here’s what to look for:

Free Spins: The Ultimate Hunter’s Choice

Free spins remain the gold standard for bonus hunters. Slots with retriggers, multipliers, or Sticky Wilds during free spins are especially rewarding.

What makes free spins so appealing?

Low-risk, high-reward potential.
Many games allow retriggers, extending the bonus round.
Multipliers during free spins often stack, boosting payouts.

What are your top slot game bonuses? Leave a comment for other readers :-) and for us, of course.