Tiger Rush review
The tiger in this Thunderkick slot does one thing and does it loudly: it lands on a middle reel and swallows the whole column. Released in October 2018, the game runs on a 5×3 grid with ten lines that pay both ways. Nothing here is hidden behind clever jargon, so almost every claim can be checked with a pencil.
Ten lines, twenty directions
The base game uses ten fixed lines, and each is read from the left and from the right. Only the highest win per line is paid, according to the rules, so the two directions never add up into a double payment. If both ends of a line have a winner, you get the bigger one.
What both-way pay really changes is frequency. Three of a kind can form at either edge of the grid, which makes small wins more common than in a left-to-right game. Each win stays modest, and the paytable shows why.
The rules draw the line map clearly. Three lines run straight along the top, middle and bottom rows, and the other seven zigzag between rows in checks, arcs and steps. This is not a “ways” game: every line has exactly one path across the grid, so a win is easy to check by hand. The bonus has its own map with twenty-five lines on the enlarged grid, some of them climbing to the top cells of the stretched reels.
A bird panel, a chrysanthemum and five gems
The look is built on a dark background with orange and red patches. The striped tiger on the panel is big, the symbols look cut from coloured glass, and the theme comes down to the Asian image of the tiger as a sign of persistence and strength. Even on a fast spin it is clear at once where the tiger and the scatter are.
There are seven symbols. The two top ones look like carved panels: a bird among autumn leaves, and a chrysanthemum on a pink field. Under them sit five glossy gems in yellow, green, red, blue and purple. The paytable shows every value as a multiple of the current bet.
| Symbol | 3 in a row | 4 in a row | 5 in a row |
|---|---|---|---|
| Bird panel | 2.5x | 7.5x | 15x |
| Chrysanthemum | 1.5x | 5x | 10x |
| Yellow gem | 0.6x | 1.4x | 5x |
| Green gem | 0.5x | 1.2x | 2.5x |
| Red gem | 0.4x | 0.9x | 1.8x |
| Blue gem | 0.4x | 0.8x | 1.6x |
| Purple gem | 0.3x | 0.7x | 1.4x |
The steps are uneven. Five birds are worth half as much again as five chrysanthemums, and the chrysanthemum pays twice a yellow gem. Below that the numbers crowd together. A three-symbol line returns the stake only with the two top panels; among gems, four yellow (1.4x) and four green (1.2x) get past the stake, while red, blue and purple need all five. Chains of several small wins in one spin are therefore easy to picture, and one line that repays a full stake is not. For plain line wins the ceiling is 15 bets, so anything bigger has to come from somewhere else.
The tiger and its column
The Wild lands only on the middle reels, always expands to cover the entire reel, and replaces everything except the scatter. Substitution alone is old news. Stretching over three cells turns a single symbol into a wall.
The studio does not say how often that happens. The reel strips in the demo files hold five tigers in 425 stops on reel 2, two in 256 on reel 3, and four in 424 on reel 4. A stop shows three cells, so a tiger is visible on reel 2 in roughly 3.5% of spins, on reel 3 in 2.3%, and on reel 4 in 2.8%. Combined, at least one tiger appears in about 8.5% of spins, roughly once in twelve.
That calculation assumes equal stop odds, and the studio claims no such figures. The payout table inside the same config file differs from the one shown in the game, so treat the strip figures as a guide.
One tiger, one line-crossing wall
A small piece of geometry is easy to miss. Every one of the ten lines crosses all five reels, one cell each, so a tiger stretched over a whole reel sits on every line at once. It never has to hit the right row.
Say birds land on reels 1 and 2, a tiger fills reel 3, and another bird sits on reel 4. Four birds in a row pay 7.5 bets. Without the tiger the chain would stop at two birds and pay nothing. A fifth bird on reel 5 makes it 15 bets. The tiger does not raise a symbol’s price; it closes gaps, and in a line slot that is the most valuable kind of Wild.
The extra free spin
The rule is one sentence: one or more Wilds always grant one extra free spin. It is not one spin per tiger, it is one per triggering spin. The cap is small, and tigers do not snowball.
What happens inside that extra spin is not spelled out. The demo files hold separate reel sets tied to which reels stay locked, for reel 2, reel 3, reel 4 and their pairs and trio. That suggests the tiger reel stays put while the others respin, but only the game itself can confirm it.
By order of magnitude, with a tiger in about 8.5% of spins, a hundred spins bring around eight extra ones, each with a ready wall on the grid. That is what keeps the base game lively.
Scatters live on the edges
The scatter, the game’s logo, appears only on reels 1 and 5. The bonus wants a pair: either two scatters, one on each edge reel, or a scatter next to a Wild. Both routes can fire in one spin. The tiger alone does not open the bonus: without a scatter beside it, it just covers a reel and pays the extra spin.
How rare is it? The strips carry three scatters in 132 stops on each edge reel. A scatter shows on one edge in about 6.8% of spins, so on both at once in about 0.46%, one spin in 215. The scatter-plus-tiger route is not counted, which makes the real bonus a bit more frequent: a fair mental picture is one bonus per two or three hundred spins, and that too is an estimate from the strips. A session of a hundred spins therefore passes without a bonus more often than not.
Bonus: the middle reels grow to five cells
On entry, the three middle reels grow from three cells to five. The map now has twenty-five lines, still paying both ways, and the paytable is unchanged. More cells and more lines mean more combinations, not higher prices.
The number of free spins depends on the number of combinations that triggered the bonus; the rules print no lookup table.
The tiger matters more here. Reels are taller, so each tiger covers five cells instead of three, and the wall reaches more of the twenty-five lines. That, not the spins themselves, is the real upside of the mode.
The ceiling: 1,750x or 1,783x
The studio page lists “Max exposure 1783” among the game details, and the start splash of the demo says “Win up to 1750x”. A small difference, but a real one; 1,750 is the figure shown inside the game. The rules describe the limit as accumulating wins in one round up to a fixed number of bets, at which point the round ends.
The studio rates the game medium volatility, and for such a game that ceiling fits: high-volatility slots run to tens of thousands of bets. Line wins arrive often, and real swings come only from the bonus with its twenty-five lines and tall reels.
Bets, no bonus buy and what is unpublished
Third-party reviews quote a range from 0.10 to 100 euros a spin. The studio page does not list it, so a particular casino may differ. The game description never mentions buying the bonus, so the only way into it is through the reels.
The studio page gives only the 96.3% return, the line counts, medium volatility and the top win. It has no hit rate and no share of the return that comes from the bonus. The Thunderkick demo opens without sign-up and uses the same maths.
Where the tiger sits among the studio’s games
| Thunderkick slot | Year | RTP | Max win |
|---|---|---|---|
| Esqueleto Explosivo | 2014 | 96.00% | 1,600x |
| Pink Elephants | 2017 | 96.10% | 8,200x |
| Carnival Queen | 2019 | 96.10% | 7,000x |
| Tiger Rush | 2018 | 96.30% | 1,750x |
Return is a touch above the other three, and the ceiling is next to the humblest of them. Closest in temperament is Esqueleto Explosivo, also a modest-ceiling, medium-volatility game that bets on mechanics you see at once. More from the Swedish studio is listed on the Thunderkick provider page.







