Top 5 Slot Providers with Bonuses

Top 5 Slot Providers for Bonuses

Trying to find the best slot games to play on your favourite UK online slot sites? Look no further than the top 5 best slot providers and their best bonuses. Our expert, Vlad George Nita, explains what makes each of the top casino game developers unique and gives you all the information you need to start playing their games with the promotions that suit you best!

#1. IGT – Best Slot Game: 777 Deluxe

777 Deluxe

Criteria Data
Reels/ Paylines 5/10
Minimum bet £0.20
Maximum bet £100
RTP 96.18%
Maximum win 20000x

777 Deluxe by IGT is one of the best slot machines available today. If you love to play classic fruit games, this slot is for you. Its impressive features combine the traditional feel with a contemporary edge. The reels of 777 deluxe are frameless, unlike others. You can try the title on the highest-rated IGT platforms in the UK online gambling market.

The main game has a classic triple 7 where you would have a watering payout of 1,000x your stake. It is a game of medium volatility. In addition, it has attractive bonuses, like the progressive ‘hot drop’ jackpot, which you can only win in the bonus game.

You trigger the bonus round when you hit three scatter symbols anywhere on the reels in one spin. The bonus game has a mini slot machine with three reels and one row.

#2. Playtech – Best Slot Game: Buffalo Blitz

Buffalo Blitz

Criteria Data
Reels/ Paylines 6/4096
Minimum bet £0.2
Maximum bet £250
RTP 95.96%
Maximum win 10000x stake per spin

You can play Buffalo Blitz at Playtech Casinos, a new high-volatility slot with a wildlife-themed game. It presents some magnificent creatures from the plains of the north and the Jungles of South America. Most of the

Buffalo Blitz features are different from the other games. For example, it offers 6 reels as opposed to the regular 5. Also, the game has an unbelievable 4096 playline where you can win up to 100 free spins.

Another exciting part of this slot is the bonuses. Firstly, there is the free game scatter symbol. If three or more scatter symbols appear on the screen during a game, you trigger some free spins.

If three scatter symbols appear, you have 8 free games. With 4 symbols, you have 15 free games, 5 symbols give you 25 free games, and 6 symbols give you 100 free games. You can retrigger the free spins as many times as possible.

Also, a wild icon appears on the reels during free games. The wild icons will multiply your wins randomly by 2x, 3x, or 5x multiples to ensure a complete line win.

#3. Microgaming – Best Slot Game: Book of Oz

Book of Oz

Criteria Data
Reels/ Paylines 5/10
Minimum bet £0.1
Maximum bet £100
RTP 96.31%
Maximum win 5000x

Book of Oz is one of Microgaming slots based on the fourteen books written by Frank L. Baum about the land of Oz. Because it is based on books, the scatter symbol is a book. So, please do not confuse it with the Wizard of Oz. It has 10 pay lines where you can bet five $2 coins per pay line. Decide your bet amount, after which you can go ahead to spin.

The slot has a bonus feature that allows you to earn free spins, which you can try out with MadSlots Casino bonus codes. Watch out for three or more Book scatter symbols on the reels. If you trigger 3 scatter books, you get 10 free spins. With 4 scatters, you get 12 spins, and with 5 scatters, you get 25 free spins. The more the scatter symbols, the more free spins you will likely trigger.

Before a free spin, the book flip pages till you see a random symbol. The symbol expands and spreads to fill reel spaces as you play the free spins, increasing your winning odds. That’s not all; the re-spin feature allows you to activate free spins at any point in the game.

#4. Play’n Go – Best Slot Game: Legacy of Dead

Legacy of Dead

Criteria Data
Reels/ Paylines 5/10
Minimum bet £0.1
Maximum bet £100
RTP 96.58%
Maximum win 5000x

Legacy of Dead is a slot by Play’n GO, a part of an ancient Egyptian-themed series that includes Book of Dead, a slot highly popular with bonuses. It is a high-volatility game with the Egyptian bird, a golden statue, a pharaoh, and other depictions. This slot has free spin and expanding symbols like several other slots.

The game has a golden burial chamber as the scatter symbol. When you trigger three or more scatter symbols, you get free spins. When you get up to 10 free spins, a wild symbol will appear to fill in the reels, giving you more winning chances.

#5. NetEnt – Best Slot Game: Starburst


Criteria Data
Reels/ Paylines 5/10
Minimum bet £0.1
Maximum bet £100
RTP 96.09%
Maximum win 500x

Starburst is popular as NetEnt’s online slots with free spins, and you can test it out using Space Wins Casino’s 5 no deposit spins. It is mobile-friendly and easy to play. The theme is futuristic, with multicoloured stars that burst along the game. It has low volatility as a game that has been here for about a decade.

Look out for one or more wild symbols when playing with Starburst spins. When the wild appears, it expands until it fills up an entire reel, prompting other reels to re-spin. The reels can spin until three middle reels with nine wilds, giving you a chance to hit a 50,000 Jackpot.

Which Slot Provider is Best for You?

All of the top slot providers have their unique creative styles, even providers you will not see on this list, like niche developer Rival Gaming, High 5 Games, or Big Time Gaming sites that offer niche games. You will find different designs, themes and features, and to pick the right one for you, simply compare these traits and try them out. For instance, RealTime Gaming casino sites excel at jackpot slots with innovative mechanics.

The best part is that most UK online casinos offer favourable slot bonuses you can use to try them out with your first deposit rewards. However, keep in mind to always play responsibly, even if you find a game that matches your preferences perfectly.