Tropicool 4 Slot Review
It is a fresh follow-up of a popular slot series, reuniting experienced gamblers with adorable tropical birds chilling in the heart of the icy Arctic. Its release was taken by many with enthusiasm, as many have already fallen in love with these feathered ones, thanks to the previously released prequels of this game. It's amazing how quickly that quirky mix of tropical & Arctic aesthetics has caught on among seasoned players, conquering the hearts of thousands of people. It is largely due to the top-notch graphics, nice animations, and nailed soundtrack, but not only.
This time, you won't be disappointed, either. There are a lot of bonus features infesting the game to offer excellent prizes up to x25,000 by the stake and guarantee lots of fun. So, don't miss our thorough review, which should get you up to speed in no time!
Tropicool 4 Play Free Demo
By the way, it is not mandatory to play this cool slot by spending real cash. Push that big button on this page to enable the demo mode that offers virtual credits to bet. As a result—no real money risks and no painful losses! Just fun and exciting entertainment!
Tropicool 4 General Characteristics
- 46,656 pay lines
- 6 reels and 6 rows
- High Volatility
- RTP: 94%
- Hit frequency: 24.1% (1 in 4.15 spins)
- Bet amount: 0.2 EUR - 100 EUR
- Maximum win multiplier: x25,000
- Maximum win value: 2,500,000 EUR
- 9 main symbols
- Additional symbols: Wild, Locked Wild, Mystery, Grid Flip, Row Swap, Big, Elmo, Flamingo, Toucan, Bonus, Multiplier
Tropicool 4 Bonus Features
Launching this game will take you onto the 6x6-sized grid layout completed with an additional topmost playfield that offers 3 extra rows. Besides tons of profitable bonus features, an incredible number of pay lines are also presented in this slot, numbering 46,656. To score a win, one must land at least 3 matching paying symbols along a win line, starting from the leftmost column. Only those combinations comprising identical images placed on adjacent reels without gaps are counted.
Avalanche feature
Every symbol partaking in a winning combination blows up to disappear away from your view after the correspondent prize is credited to the balance. That leads to void cells on the playfield, which are filled with regular and feature symbols dropping from above. These winning cascades last as long as prize sequences still form on reels.
Cool Reel
There is an additional 6x3-sized playing field just above the main one comprising bonus symbols and ice cubes that close gaps between feature symbols. Cool Reel's symbols refresh with each new spin, just as in the main grid. Also, there can be empty cells at the Cool Reel. Feature symbols are still inactive as long as they are on the Cool Reel. But they exhibit their unique powers once they fall onto the main grid. Finally, ice cubes dropped onto the 6x6 playing area are immediately replaced by random regular paying pics.
Feature Symbols
There are numerous feature symbols in this slot. Let's tackle what they are exactly for.
Wild
As per tradition, Wild symbols substitute any other regular pictures except for special ones to boost the number of winning combinations. Moreover, those prize sequences comprising just Wilds yield the maximum payout according to the pay table.
Locked Wild
This Wild behaves the same way as the ordinary one, except it sticks to the play grid, remaining on it till it takes part in several (2 or 3) winning combinations (their number depends on a figure pointed on a Wild symbol). This special symbol will unlock and disappear once the preset number of wins is reached. Also, it will go away along with the other symbols from the screen if the current round of the base game is completely accomplished, even though its winning potential is not yet fully exhausted. Luckily, during the bonus FS game, Locked Wilds may be on the grid as long as it takes to be finally unlocked, even if it will take several Free Spins in a row.
Mystery
All Mystery symbols currently on the screen unveil the same image. It could be a regular symbol or a special one, excluding bird characters. Mystery symbols activate when there are no more wins on the reels.
Grid Flip
Once winning cascades finalize, this special symbol meticulously shuffles the playfield by switching the places of the reels. Particularly exchanging the 1st column with the 6th one, the 2nd with the 5th, and the 3rd with the 4th. After that, the Grid Flip symbol shapeshifts into the Wild.
Row Swap
When the Row Swap special symbol is empowered, it turns all the symbols of the row it is on into a picture randomly chosen among those presented currently on the same row. If Flamingo has been picked, all symbols of the affected row will become Wilds.
Different Row Swap symbols on distinct rows may select different symbols to transform into. Any extra Row Swap symbol on the same row will extend the symbol replacement action onto the relevant reel.
Any position being under the effect of two distinct Row Swaps features will be populated with the Wild if those picked two different symbols to transform into.
A Big paying symbol will be replaced completely. A Big Swap symbol operates on all rows it covers.
The Bonus symbol, as well as Elmo and Toucan characters, will revert to their previous positions after the Row Swap feature action is finalized. On top of that, Wilds won’t be transformed during the Row Swap feature action.
This feature is triggered after winning cascades are finished, as well as Mystery and Grid Flip symbols have already been activated.
Multiplier
This special symbol boosts the Global Multiplier and can have a maximum x3 value. As the initial Global Multiplier is, in essence, equal to x1, the first awarded Multiplier will be added to that starting value. Then, any other multiplier also will be added to the current Global Multiplier.
Big Symbols
Paying pics and feature symbols can appear in sizes 2x2 and 3x3, besides a standard one of 1x1. The only exceptions are bird characters and Elmo, as well as Grid Flip, Multiplier, and Bonus symbols. In winning sequences, any Big symbol is assessed as a corresponding number of regular ones. For instance, a single 2x2 symbol is worth four 1x1 ones.
Big feature symbols falling from the Cool Reel onto the main grid break all located below paying symbols, paving the way toward the very bottom unless they run into other special or Big symbols that will stop them. If a void cell appears on the main playfield but a Big symbol on the Cool Reel is too large to fit in, it splits into 1x1 symbols, which allows them to fill a formed gap.
Also, a Big paying symbol paves the way to the bottom row, crushing symbols on its way down if there is at least a single empty cell under it. Yet, it cannot destroy other Big and special symbols that stop it from falling further. Hence, if a void cell appears below the Big symbol, this gap is populated with a 1x1-sized symbol of the same type as that big one.
Character Features
Also, 3 wild animal symbols are involved in the slot's gameplay. Let's briefly explore their purpose.
Elmo Drop
While this symbol is a 1x1 size, it is inactive. But whenever it gets free space around to grow up to 1x2 or 1x3 size, Elmo is ready to act. When it's time, Elmo eliminates all the paying symbols on the rows it is on. After that, it disappears. Note that only bonus and feature symbols will be untouched. Elmo activates its superpower when there are no more wins on the screen.
Flamingo Wild
It's a Walking Wild, which initially can be of the 1x2 or 1x3 size. The Flamingo moves a single position rightward per spin until it reaches the rightmost reel. It grows one cell up to the 1x6 size with each new step. Also, the Flamingo grants a single respin in every step when wins are finished. Once reaching the 6th column, the bird waits for an eligible moment to trigger the last Respin and disappears.
Toucan Multiplier
It’s a Walking Multiplier symbol advancing a single position per spin moving rightwards. With each Toucan’s step, the Global Multiplier grows +x1. Also, like Flamingo, Toucan triggers a Respin in each step when no more wins are on the screen. Upon achieving the 6th reel, the bird character waits for the right moment to award the final respin and leaves the screen.
Bonus Symbol
Depending on the number of Bonus symbols, different amounts of Free Spins can be awarded:
Bonus Symbols |
Free Spins |
3 |
6 |
4 |
9 |
5 |
12 |
6 |
15 |
Free Spins (FS)
There is not much of a difference between the base and bonus modes, except for Locked Wilds, which are still persistent on the play grid till fully used, and the Global multiplier, which doesn’t reset between Free Spins, steadily growing till the bonus game ends. Also, there are also special symbols that drop down onto the main field from the Cool Reel that give 1-3 extra FS.
X-iter
There are five options to buy bonuses via built-in in-game service:
- The ‘Super Bonus’ option (x500) guarantees Elmo in each Free Spin;
- The ‘Bonus’ option (x100) triggers a regular bonus game;
- The ‘Double Birds’ option (x50) guarantees the dropping of both bird characters;
- The ‘Locked Wilds’ option (x25) lands a minimum of three Locked Wilds;
- The ‘Bonus Hunt’ option (x3) triples your chances to kick off Free Spins.
Our Experience Playing Tropicool 4
To not change our tradition, we probed this game by spinning out as many as three hundred spins with the stake per round established at the €1 level. Meanwhile, our initial deposit onto the game balance was precisely €200.
From the beginning, we want to highlight that we didn't trigger any bonus game throughout the whole slot's test drive, which is a little bit disappointing but didn't interrupt us from earning some income. Now, let's dive into the details.
The first hundred spins greeted us with the biggest prize ever throughout this gaming session, totaling €244.9. Overall, we had 23 cash prizes. The smallest was €0.1. The biggest Global Multiplier was x9. After the 100th spin was over, we had €388.25.
During the second hundred spins, the largest prize amounted to just €13.7. In total, we racked up 27 wins. The smallest prize was €0.05. The largest Global Multiplier turned out to be x6. When 200 spins were over, we possessed €344.55.
The final hundred spins delivered the €34.2 biggest win. The overall number of base game prizes totaled 32. This time, the biggest global multiplier became equal to x8. Once the game was over, we had €331.4 on the balance. That means we earned €131.4 on top of our initial deposit.
Here are all the statistics:
RTP |
94% |
The size of the stake |
€1 |
Min Base Game win |
€0.05 |
Max Base Game win |
€244.9 |
The biggest Base Game wins (>x10) |
x244.9, 34.2, x13.7, x10.2 |
Total number of Base Game wins |
82 (1 in 3.6 spins) |
Wins that are lower than the bet |
37 (1 in 2.2 winning spins) |
The lengthiest non-wins period |
10 spins |
The biggest Win Multiplier |
x9 |
Free Spins triggering |
0 in 300 spins |
Average Base Game income per spin |
€0.44 |
Initial deposit |
€200 |
Final game balance |
€331.4 |
Net income |
€131.4 |
The key specialty of this slot is the main game, jam-packed to the brim with bonus features. As a result, the mind-blowing mix of Avalanche mechanics and an abundance of special symbols makes even the main mode sufficiently fruitful to bring gigantic cash prizes. Our example is the best proof of that matter. So, despite the rare Free Spins triggering, which looks like a huge drawback, on the bright side, it is not necessary to activate the bonus game to grab a solid reward in this slot.
Tropicool 4 Verdict
To sum it all up, it is a masterfully designed gamble, boasting superb graphics and smooth animations. Really, man, it's something—such an eye-catching exterior is encountered very rarely even among contemporary slots. Yet, the best part is the broad diversity of bonus features populated in both the main and bonus modes, which guarantees plenty of fun during the whole process of playing, regardless of whether you succeeded or failed to kick off Free Spins. Moreover, a long list of ‘Buy Bonus' options can add a touch of extra thrill to entertaining.
The most prominent cons are an elusive bonus game, a relatively poor RTP value (You might find our publication with a list of slots with the best RTP useful) that is slightly smaller than the average one in the contemporary iGaming industry (95%), and the absence of the possibility to kick off Super Bonus game mode without the need to enlist the services of the X-iter option. On the other hand, this gamble is infested with engaging and lucrative features, promising exciting entertainment, whether you're indulging in playing in the bonus or main mode. On top of that, a tremendous maximum win reaching up to x25,000 by the current stake is present in this stunning gamble.
Symbols and Paytable

















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