The Best Online Colossal Reel Slot Machines for 2021

Prepare yourself for larger than life rewards with colossal reels slot machines. First developed by WMS, these innovative slot machines add a 5x12 grid to the regular 5x4 main slot. With 100 paylines and transferring wilds, where wilds from the main grid clone themselves to the colossal grid, players are sure to hit big rewards with twice the chance for a win. If all that sounds exciting to you, you can start with one of the amazing games in the table below:
Colossal Reel Slot: Best Casino: Variance: RTP: Jackpot Rating: Secure Link:
Medium 96.01% Yes
5.00 ★ out of 5
casimba.com
High 95.98% No
4.90 ★ out of 5
playojo.com
Medium 96.21% No
4.90 ★ out of 5
dunder.com
Medium 96.00% No
4.90 ★ out of 5
betfair.com
Medium 95.94% No
4.80 ★ out of 5
royalpanda.com
Medium 95.90% No
4.80 ★ out of 5
leovegas.com
Medium 96.00% No
4.80 ★ out of 5
videoslots.com
Low to Medium 95.94% No
4.70 ★ out of 5
grandivy.com
Medium 97.75% No
4.70 ★ out of 5
dreamvegas.com

In this blog, we will go over these nine fantastic games and their features. Learn more about their special features and what makes them stand out from regular slots. Note that colossal slots also have a lower RTP and higher bet limits, so make sure you’re ready for the thrill.

Top 9 Best Colossal Slots in 2021

Before we begin, here is a list of the games covered in this blog post. Use it to quickly find the one you’re most interested in or see what’s in store. You can also test out the games with the provided demo versions.

1. Epic Monopoly II – The Ultimate Monopoly Experience

Starting off, we have an amazing game from the creator of colossal slots and top developer WMS. Epic Monopoly II is the bigger and better sequel to the hit Epic Monopoly slot. Feel like a millionaire as you win huge payouts that can get up to 1500x your bet.

Epic Monopoly II Slot
Instant play

Each winning payline counts towards a total win, so it becomes easy to rack up the big prizes. Getting wilds with these slots is even more exciting as wild reels will transfer over to the colossal reel for even more rewards. But what makes Epic Monopoly II so incredible are the bonus features.

Spin the wheel for a random prize, pick a card or play a classic game of Monopoly for big prizes such as free spins or a fixed jackpot. With enough luck, you can even stack up the bonus rewards for some truly epic wins. It’s no wonder then, that this is one of the best online Monopoly slots.

2. Spartacus Gladiator of Rome – Glorious Spins of Freedom

Enter the coliseum, fighting for your freedom and huge rewards with the iconic wms colossal reels. A highly stylized slot awaits you with sounds of combat and Roman symbols setting the atmosphere. Spartacus himself acts as the highest paying symbol ensuring glory to all who meet him in battle.

Spartacus Gladiator of Rome Slot
Instant play

The gameplay is standard for colossal slots. Getting a stack of the game’s logo, which acts as a wild symbol, will transfer it to the colossal reel for huge wins. As every winning payline contributes to the reward, you will soon be showering in gold from your tough fights. But don’t forget the bonus.

Getting three or more Coliseum symbols across both grids will award up to 20 free spins with a 20x multiplier. Coupled with the stacked rewards, this can bring enormous rewards to all lucky players. While it does not have many bonus features, the Spartacus Gladiator of Rome slot is a true legend among colossal slots.

3. Giant’s Gold – Gigantic Bonus Game

What could be more fitting a theme for colossal reel slots than Jack and the Beanstalk? Enjoy the peaceful atmosphere of a simple farm life, complete with farm animal noises, while searching for the coveted golden egg. Climb the beanstalk to reach the giant’s keep and earn your hefty reward.

Giant's Gold Slot
Instant play

The beanstalk symbol is both a wild and the highest paying symbol. Thus, if you can get a stack of wilds, the prize harvest will be truly bountiful. Even low rollers can enjoy the game by altering the paylines and bet amount. Everyone has a chance to get the precious bonus round.

The ultimate bonus is a bit tricky to get. Three feature symbols will award 5 free spins, but 40 or more award 100 free spins plus a 2x multiplier. Just like the popular Jack and the Beanstalk slot, you will enter the giant’s magical kingdom in the sky. You’ll need plenty of luck for the big rewards, but persistence and patience will pay off. Enjoy a thrilling, yet relaxing adventure with this wonderful slot.

4. Rainbow Riches Reels of Gold – Magical Bonuses

WMS are not the only ones who develop colossal reels slot machines. Barcrest is another company that has merged with SG Interactive and creates fantastic slot games such as the Rainbow Riches series. This slot is the colossal reels edition in that popular series of games.

Rainbow Riches Reels of Gold Slot
Instant play

Enter a magical land as the Leprechaun guides you to his pot of gold. Not only can you benefit from the wilds, but there’s a chance a fairy will award you one of seven random features. This can include more wilds, a re-spin or even triggering the bonus game.

The fun doesn’t stop there as getting three or more balloon bonus symbols will trigger the free spins. More bonus symbols mean more picks and spins. Once the spins run out, you can gamble your winnings for an even bigger award. With so many bonuses and games, you will surely start a joyful dance in tune with the Irish soundtrack.

5. Li’l Red Riches – Homemade Free Spins

WMS colossal reels also dabble in fairy tale themes. The Little Red Riding Hood has grown up and is once again on a journey to her grandmother’s house. Help her traverse the trail safely as you meet the various characters of the tale and aim to reach the cottage.

Li'l Red Riches Slot
Instant play

The characters from the tale are the highest paying symbols. Little Red will reward you greatly for your help with up to 500 coins while the Wolf, Granny and Woodcutter have their own prizes. Stacks of wild symbols are also just as valuable as in other colossal slots, increasing your odds of success.

Finding three or more cottage symbols will complete your journey with a nice surprise of up to 20 free spins and a 20x multiplier. Getting another set of symbols during the bonus game will add more free spins, so you can play for longer. A real happy ending to an arduous journey.

6. Kiss: Shout It Out Loud – Rocking and Rolling Reels

Are you ready to rock out with the wildest band in the world? Kiss: Shout It Out Loud doubles the excitement of colossal reel slot machines by adding the fantastic atmosphere of a rock concert. Enjoy the fantastic special effects and the crowd chanting as you get bonus symbols.

Kiss: Shout It Out Loud Slot
Instant play

The wild symbol is also the highest paying one, so getting a combination with it is incredibly valuable. Jam out to the amazing rock soundtrack as you spin the reels, with guitars and drums as sound effects when you win. All of this excitement and atmosphere leads to the final bonus performance.

Getting three or more KISS logos will trigger the classic free spins bonus game with up to 20 spins and a 20x multiplier. But that’s not all, as during the spins you get to listen to one of three iconic KISS songs. Simply playing this slot is a treat in of itself, fitting for one of the top music-themed slots.

7. Zeus 1000 – Godly Rewards

The mighty God of Thunder has arrived with a challenge for the bravest of heroes in Zeus 1000. Enjoy a fun game filled with exciting bonuses and many high paying symbols. Although the base game is fun, the bonus game is where the true fun begins, and you rack up the big rewards.

Zeus 1000 Slot
Instant play

The wild symbol is the most valuable one, along with Zeus himself. If a bonus symbol is on a wild colossal reel it can turn into a WONUS and substitute any symbol. Additionally, the bonus game is guaranteed to have a 10x payout when playing with the max reels.

Getting three or more bonus symbols will grant up to 30 free spins and a 25x multiplier. If you get a stack of Zeus on your first reel, he will add several symbols of himself to the reel for a huge reward if they line up. As such, this bonus game is incredibly rewarding.

8. Lunaris – Elusive Rewards

What secrets does the elusive crescent shaped moth hide? Lunaris is unique among colossal reels slots with its mysterious, yet relaxing theme. Enter a moonlit forest and enjoy the sublime sound effects, immersing you into a strange and beautiful world as you try to uncover its magical secrets.

Lunaris Slot
Instant play

All of the symbols are beautifully designed. Aside from the standard suit symbols, you can find constellations, a zodiac face and the Lunaris moth itself. The moth acts as a type of wild, transferring a random number of moths to the colossal reel. They transform into a random symbol to bring you a reward.

Finally, finding three or more caterpillars can get you up to 25 free spins and 25x multiplier. You will be transported to an elusive realm where the big prizes await and getting a combination of caterpillars again will add more free spins for extra fun and rewards with the beautiful moths.

9. King’s Honour – Quest for Bonuses

The king has set out on a quest for glory and riches. Join the quest and be rewarded with exciting gameplay and lucrative prizes as you traverse another of Barcrest’s fantastic colossal slots. With an adventurous soundtrack and stylish symbols, this slot excels in its detailed presentation.

King's Honour Slot
Instant play

There are two modes for this game. You can play the standard version of the colossal slot where even low-rollers can participate due to the low minimum bet limit. High rollers and those seeking excitement can spend a set amount on the Big Bet feature for a few spins with extra bonuses.

Pull the sword from the stone with 3 or more bonus symbols to activate the Reel of Honour. Spinning it grants a random number of free spins and the possibility for a reward multiplier. Finally, you can benefit from a multitude of other bonuses such as wild re-spins or bonus multipliers. Enjoy a truly epic and unforgettable quest with a variety of rewards.

Conclusion – Colossal Reel Slots Take the Stage

And with that, we conclude our overview of the colossal reel slot machines. WMS and Barcrest have made some delightfully fun games with an innovative feature that increases the rewards and the excitement from getting good bonuses. With medium volatility and wide bet limits, every type of player can find something to enjoy with these slot games. Colossal slots have certainly earned a spot as some of the best online slot games among other popular titles. We hope to see more of them in the future.

Colossal Reels FAQ Section

Before you jump into the excitement, you might have some questions regarding the games. As this is an innovative feature not found in many slots it can be a bit confusing. However, we have prepared a small FAQ section so you can start playing these wonderful games instantly.

🤑 Which Colossal Slots have the best bonus features?

The game with the best bonus features is certainly King's Honour. Experience ten whole bonus features, including symbol upgrades, re-spins and more. There's even a random chance for huge symbols to appear on the reels for a reward. Most of the bonuses will appear in the free spins game, so make sure to aim for those bonus symbols.

❓ Who developed the Colossal Reels Slot Machines?

Most of the colossal slots are developed by Williams Interactive as it is their creation. However, some such as Rainbow Riches Reels of Gold were developed by Barcrest. This is not unusual as both companies are currently owned by Scientific Games. As such, both of these developers guarantee a high-quality gaming experience.

📱 Are Colossal Reel Slots available on mobile?

The slots are all optimized and available for play on any mobile device you choose. The best game for mobile is Li'l Red Riches as it is perfectly optimized and suitable to play even on small screens. Enjoy a colossal amount of fun, packed into a tiny device anywhere you go with colossal reel slots.

🔒 Are Colossal Slots safe?

The games are developed by reputable companies with years of experience in the business, so you can be certain that all games are 100% safe to play. Your personal and financial data will not be stolen or misused as the games are hosted in reputable casinos. Try out Zeus 1000 for a fun start to your experience.

🎮 Are there Colossal Slots Demos?

We know that before spending money on a game, players like to experiment and see how enjoyable it is. That is why we have provided demos to the games featured on the list. Play as much as you wish with these unique slots. For starters, we recommend trying out Kiss: Shout It Out Loud for its exciting rock atmosphere.

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