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Colossal Gems Slot - Review, Free & Demo Play

Colossal Gems
Colossal Gems
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Updated: 22.07.2025
Reviewed by: Ella Houghton
Colossal Gems is a slot developed by Habanero and released on 28/08/2019. If you like jackpots and gems more than an advanced game story, then this title is really for you. We have created an informative review of this slot so that you can quickly understand its secrets and develop your own tactics. We also posted a demo on this page, which will help you learn the features of the title.
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18+ | New players only | Terms Apply | Please play responsibly | gamblingtherapy.org

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In this review
  1. Slot details
  2. Theme
  3. Bonus Rounds & Free Spins
  4. Summary
  5. Where to play
General information about Colossal Gems slot

General information about Colossal Gems slot

Rating by Ella Houghton:
8.1
Habanero
Write a review +25 SJ points
  • Release Date:
    28.08.2019
  • Volatility:
    Low
  • RTP:
    96.8%
  • Multiplier:
    No
  • Max. win:
    13,821x
  • Bonus game:
    No
  • Free spins:
    Yes
  • Scatter Symbol:
    No
  • Wild symbol:
    Yes
  • Symbol Stacked:
    No
  • Jackpot Game:
    Yes
  • Slot lines:
    30
  • Slot reels:
    6
  • Layout:
    6-5
  • Stakes range (€/£/$):
    0.3 to 6,000
  • Slot Theme:
    Gems
  • Technology:
    JS, HTML5
More infoLess info

Licensed and tested by

  • BMM Testlabs
  • eCogra
  • iTech Labs
  • Junta de Control de Juegos
  • Loteria de la Ciudad
  • MGA

How to Play

Start playing Colossal Gems with these steps:

  1. Open and load the title
  2. Read the rules of the slot, as well as the paytable
  3. Bet between €0.3 and €6,000
  4. Spin the reels

The game has a 6x5 grid where you can make 30 winning combinations of 6 symbols. The Wild in the slot does not pay and appears only during the free spins round. There are no other special characters in the title.

At the same time, there is an opportunity to get giant symbols that occupy up to a 4x4 of the game grid. It is important to note that the title has a progressive jackpot, the amount of which depends on the bets made by different players. As a rule, up to 1% of each bet goes into the jackpot fund.

On the control panel of the title, you can start the automatic game mode, as well as high-speed spins of the reels. By pressing the Help button, the player will receive information about the rules of the slot, the minimum and maximum bets, as well as the statistical indicators of the game.

Colossal Gems RTP and Volatility

8.8 
The RTP of the slot is 96.8% and the volatility is low.

The return on stakes reflects the amount that you can get back after the end of the game. RTP is just a part of the slot machine statistics, so don't think that you will definitely get 96.8% of the money spent on the title. First, you can win more if you're lucky. Secondly, RTP only works in the case of a game session that lasts a very long time.

Low volatility will provide you with frequent payouts of small amounts. As a rule, the winnings in such slots are smaller than the bet. However, the jackpot and bonus games are played according to the general rules, while remaining potentially profitable.

Theme

8.5 

The slot has a simple but memorable graphic design. The playing field is set against the background of endless outer space, where unexplored planets can be seen in the distance, and precious stones hang around. In the upper left part of the screen, there is a jackpot counter, which shows its current amount and counts down the time until the draw.

The music in the game is monotonous, but the sounds of game events are really well worked out. During the appearance of prizes, peppy fanfares are heard, raising the mood.

The symbols of the title also do not differ in variety. These are simply round, square, rectangular gemstones in various colors. The Wild is a purple stone that resembles a ruby. It is not surprising to get confused in the game symbols in slots, since high elements look the same as low ones.

Theme
Colossal gems slot paytable

Mobile Compatibility

Colossal gems slot mobile
The slot is perfectly adapted to run on portable devices, and during the game, the grid size increases or decreases according to the screen resolution of your smartphone or tablet. To play stably and for a long time, you do not need a high-speed Internet connection. 3G is quite enough.

About Habanero

Habanero is a slot developer for the online casino industry that has become famous for several popular releases. Among them are Disco Beats, Totem Towers, and Scopa. Gamblers choose the provider's games for an excellent balance between investments and payouts, excellent graphics, and advanced storylines. Today the company continues to develop, creating new titles.

Best slots from this provider that we recommend:

Bonus Rounds & Free Spins

8 

Jackpot

The main prize in the game is drawn when the countdown on the counter located on the left side of the screen ends. Until that time, the jackpot amount continues to increase due to the bets of all players using the slot. After the start of the draw, everyone who wants to participate in it must place bets and spin the reels of the title. At the same time, the jackpot triggering can happen at any time within 10 minutes.

There are 9 prizes in total in the game. The largest share of the jackpot (20%) is received by the player who spins the reels of the slot at the time of its launch. The rest take 10% each.

Re-Spins

After any win in the basic round, a re-spin takes place on the screen. If it also ends in a win, another one starts. During the first re-spin, a 2x2 symbol will land on the screen. The second re-spin will bring a 3x3 element, and the third one will bring a 4x4 symbol. If all three re-spins result in wins, a series of 6 free games is activated.
Colossal gems slot Re-Spins

Free Spins

Giant symbols are also guaranteed to appear during the free spins round. However, in this case, the Wild also joins them, which significantly increases the chances of a large payout.

Colossal Gems Demo Play

If you do not want to spend real money on the game yet, use its demo version. We have placed it on this page so that you always have access to the study of this slot. The demo works on the same principle as the main version.

Max Win

7.2 
Maximum win – 13,821x the bet.
It takes a lot of luck to win the maximum payout in the base round. The fact is that both bonus rounds of the slot are interconnected, therefore, in order to trigger free spins, you need to successfully overcome the re-spins. On the other hand, if you use medium bets in a slot with low volatility, you can get a chance for a good payout during the base game.

Overall Rating

8.1
Colossal Gems is a game that will attract the attention of high rollers and gamblers who prefer medium stakes. Although there are no confusing features here, newcomers may find the slot's bonus series challenging.
Hits
Re-Spins
Free Spins
Progressive jackpot
Suitable for high rollers
Misses
Outdated theme

Colossal Gems Slot - FAQ

What is the Return to Player (RTP) rate of Colossal Gems?

The RTP of the game is 96.8%.

Does the Colossal Gems slot have a jackpot?

Yes, it has a progressive jackpot.

What is the most valuable Symbol in Colossal Gems?

It's the Lilac stone symbol.

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Ella Houghton
Ella Houghton
Expert in: News, Blog, Slot reviews, Payments
Ella is a professional content-writer with 8 years of experience in the casino sphere. She has broad knowledge of gambling related themes and is happy to share this with Slotsjudge.

2126 articles

Reviewed by Editor-in-Chief
Nikita Lukanenoks
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