Greentube Slot

Island Heat Slot Machine

Island Heat Slot Game

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Greentube has a new slot release, one that takes you on an exotic island to hang around with beautiful girls and rare, island animals. The slot offers 30 non-fixed paylines, and a betting range convenient to both low and high-rollers. It also offers some decent payouts and several special features.


The Wild in the slot is the Tiki Mask, which appears Stacked on the reels. It is the symbol that will substitute for all other symbols in the creation of winning combos, but not for the Scatter symbol. The Wild also gives you one of the best payouts in the slot, of $1,500.00 for a 5-of-a-kind combo.

The Scatter is the symbol that shows a fire burning and the word BONUS over it. It is the symbol that only appears on the middle reels and awards Free Spins. Just like the Wild, the Scatter also appears Stacked on the reels. However, during the Free Spins, before each spin starts, a random symbol is chosen to appear Mega Stacked during the feature, improving your chances to win big.

While all other symbols pay from left to right, the Scatter pays in any way. Since the Scatter can also appear Mega Stacked, it will count as double on the reels. Therefore, whenever the Scatter lands on the reels, it triggers something. Should you land 7 Scatters, you trigger 8 Free Spins. Land 8 Scatters and you get 16 Free Spins. However, if you manage to land 9 Scatters, you get to receive up to 32 Free Spins!

Theme & Design

As you load the game, you enter a Hawaiian paradise. You are taken to a beautiful sandy beach, with a turquoise sea on the right of the reels, and the high mountains in the back. On the left of the reels, you will see the beautiful, miss-material girl, with a Hawaiian-style flower in her hair, looking seductively at you. The girl is also the highest paying symbol, right after the Wild. The cute Dolphin is the next best paying symbol, followed by the red Parrot, then the Pineapple and the Hawaiian Flowers. For the lowest-paying symbols, you get the playing card royals.

Visually, we cannot say that the slot is the most impressive one. Sure, the high-value symbols are depicted perfectly, with crisp clear graphics, however, whenever we take a look at the screen and go through the paytable, we cannot ignore the fact that the game looks outdated. The theme is not unique either, but still, everyone loves a good Hawaiian-themed slot, so we’ll give the developer credit at least for that.

Wagering & Paylines

Considering the fact that the 30 paylines offered are not fixed, you can decide on your bet based on the paylines you want to bet on and the bet level. You can bet on 1, 5, 10, 20 or 30 paylines, so you get 5 options here. To place the lowest bet, you must select 1 payline and the lowest total bet value of 0.01. This makes your minimum bet $0.01. Now, for 30 paylines selected, you can place a maximum bet of $45.00. As the developer explains, the RTP the game offers is 95.04%, but it has the tendency to vary due to statistical variance.

The Wild, as mentioned, can give you the highest payout per single winning combo. You can get $1,500.00 for landing 5 Wilds on the reels. For a winning combo with the beautiful girl, you can pocket up to $75.00. However, the game can give you up to 1,000x the stake payout in a single spin, meaning $45,000.00. This is, of course, not the max total payout, so the game can be quite rewarding if you get several successful spins that will give you a payout like that one. 


Island Heat is an average slot, really. It gives decent payouts per spin, and it has several good features that can make your gaming time a pleasant one. However, we were not impressed with the overall design and the outdated feel it reflects. But if you don’t care about the visuals and your focus is on payouts, then you should try Island Heat because, for a relatively small max bet, you can win some incredible prizes.