Colossal Gems Slot Review

(2 votes)
High RTP Modern slot provider Fantastic graphic Multi-Reels slot Multi-Paylines slot
Colossal Gems Details
Release Aug 2019
Provider Habanero
Max. RTP 97.88%
Reels 6
Paylines/Ways 30
Betting Range (€/$) 0.30 - 6,000
Max. Payout 1,800x
Progressive Jackpot No
Megaways No

Habanero celebrates an important milestone with Colossal Gems, their 100th slot machine, and in its case they went with a fairly high volatility slot, which uses a big game area and cute cartoon-style graphics, mostly gemstone style.

Colossal Gems is a game which has 6x5 reels, uses 30 lines, re-spins and free spins, along with colossal-sized symbols and wilds. The mix of features makes it an interesting choice for any player, but the game also does very well with its 97.88% RTP and the top payouts which go as high as 1,800x total stake.

Betting and Prizes

It’s a fairly big betting range that you can work with here, which starts from a value as small as $0.30, but it can reach a maximum one of $6,000 per spin. To change the amount going to each of the 30 lines involved, you modify the bet level/number of coins from 1 to 10, and then you decide how much the coins are worth as well ($0.01 to $20). You get to bets of up to $200 per line, and $6,000 total.

With wins of up to 60x paid on each line, the slot will offer up to 1,800x total stake in a single round. It’s not a huge payout, but the game has low enough volatility, so it works for it. One of the things that get me really excited about this game, the RTP is at 97.88%, one of the highest returns I’ve seen lately in a slot machine.

Colossal Gems Slot Features

Not an entirely unique game, but fairly rare in any case, Colossal Gems features a large game area with 6x5 reels. It will form winning combinations via matching symbols which are on the same active line, 3 to 6 being required for a prize to come your way.

Whenever a combination forms, a re-spin will trigger, and it will introduce bigger and bigger symbols, with each new winning round. These giant symbols are guaranteed to appear, at least once. If the wins keep coming, and the giant symbols get bigger several times in a single spin, you can end up with gems as large as 4x4. These are Colossal symbols, coming in at 2x2, 3x3 and 4x4.

Finally, there are free spins which you can obtain while playing Colossal Gems. You can get them with re-spins, under the right circumstances. You just need three consecutive re-spins to happen, and in exchange the slot will offer you 6 free spins.

In free spins mode, all symbols may appear giant-sized, even the wild. All giant sizes are available, from 2x2 to 4x4. You get a minimum of one giant symbol per spin, so that’s a guarantee.

The Wild Gem will be a substitute, and you can use it in the formation of any winning combination. It is only available once you reach the free spins.

Theme & Design

A space-based slot machine, with gemstones for its symbols, Colossal Gems doesn’t have something original to show us here. Even so, it works as a game, thanks to the very high quality of the design, something to be expected from Habanero’s slots. You will discover symbols with gemstones in various cuts (circle, square, triangle, diamond, etc) and colors (pink, dark or light blue, green, orange, red).


Colossal Gems is no typical game, but its huge RTP of 97.88% will make it attractive even for players that don’t want slots which are a bit more complex. I’d definitely recommend this one, it’s fun and it has the right RTP.

Colossal Gems Slot Machine FAQ

❓ What is a key options of the Colossal Gems slot?

✔️ Slot developer: Habanero , Max. RTP: 97.88% , 6 reels with 30 paylines , Betting Range (€/$): 0.30 - 6,000 , Max Payout: 1,800x .

❓ Where can I play Colossal Gems?

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❓ Can I play Colossal Gems slot on my phone?

✔️ Yes, it's absolutely mobile-friendly!

❓ Where can I play this slot machine free?

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