The third expedition and symbol pays

After India and the Aztec ruins, adventurer Rich Wilde heads to ancient Egypt in search of the Book of Dead. The studio ties the story directly to his two earlier outings, Pearls of India and Aztec Idols. The legend this time is that the ancient Egyptians recorded the secrets of the worlds between life and death in the Book, and that treasure lies close to those secrets. The reels sit inside an underground tomb, populated by Egyptian gods, a pharaoh and Rich himself. The studio’s character note calls him a devilishly handsome adventurer who will stop at nothing to find hidden treasure, adding that his exploits grow more daring and dangerous over the years.

Lines are read from the leftmost reel. Card symbols from 10 to Ace need at least three of a kind, while the premiums (a falcon, Anubis, a pharaoh and Rich Wilde himself) pay from two. The hero’s own portrait pays the most.

Line multipliers are converted from line stakes into total stakes with every line active. Scatter pays use the total stake directly. The table’s line figures therefore need rescaling when lines are disabled.

Lines, coins and the Book’s dual role

Stake = active lines (1–10) × coins per line (1–5) × coin value (0.01–2). Lines activate in order. A 0.01 minimum means one coin on one line; all lines at the lowest denomination cost 0.10. The total upper limit is 100. Different coin-count and denomination combinations at the same line stake do not change that line’s pay.

The Book is both Wild and Scatter: it substitutes for other types on a line and pays in any positions. Only the highest combination pays per line, so a Wild does not create two pays on one path. There are no cascades, sticky symbols or separate multipliers.

The special symbol in free spins

Three Book scatters award 10 free spins, and the round then runs like this:

1. Before the first spin, the game draws one regular symbol at random. It stays the expanding symbol for the whole sequence, retriggers included.
2. On each spin, ordinary line wins are paid first.
3. The chosen symbol can then expand to cover all three positions on its reel, but only when that creates extra wins on active lines.
4. Expanded symbols do not need to sit on adjacent reels to form those wins.
5. Three or more Books during the feature add another 10 spins.

A premium needs two expanded reels, while a card needs three. These are different payment thresholds rather than evidence of any particular bonus’s higher frequency: selection and landing weights are absent. Additional expansion pays add to the regular combination paid beforehand.

Rich Wilde — 2 reels: 10x; 3 reels: 100x; 4 reels: 1,000x; 5 reels: 5,000x.

Pharaoh — 2 reels: 5x; 3 reels: 40x; 4 reels: 400x; 5 reels: 2,000x.

Falcon or Anubis — 2 reels: 5x; 3 reels: 30x; 4 reels: 100x; 5 reels: 750x.

A or K — 2 reels: —; 3 reels: 5x; 4 reels: 40x; 5 reels: 150x.

Q, J or 10 — 2 reels: —; 3 reels: 5x; 4 reels: 25x; 5 reels: 100x.

With every line active, expansion pays each one, so its result is the line pay times the line count. Five reels of Rich give the listed maximum for one expanded combination; this establishes neither a sole maximum route nor a cap on the accumulated sum of several free spins.

Gamble, RTP and published frequencies

After a base-game win, optional Gamble lets you guess a card’s colour to double or suit to quadruple. Up to five attempts and 2,500 coins are allowed; a miss loses the amount at risk. At 1/2 and 1/4 odds, the multiplier increase is offset by losing probability rather than raising average pay.

The five RTP builds are 96.21%, 94.25%, 91.25%, 87.25% and 84.18%; they look identical and operators select the configuration. Risk is high, rated 10 on the studio’s rules scale. The main build lists a pay averaging once per 3.26 spins: a pay does not imply a profitable spin. Free-spin frequency is unpublished.

For the 5,000x per-spin maximum, the studio quotes a probability of roughly one in 2.7 million. This is a separate rare outcome, not bonus frequency or a promise of a result after that many spins. Bonus termination on reaching that sum is unestablished.

Successors and the earlier book

The game launched the Dead range and appears among the studio’s land-based favourites. Legacy of Dead arrived in January 2020 with 96.58% RTP, a 5,000x maximum and unlimited retriggers. Cat Wilde and the Doom of Dead (June 2020, 96.29%) uses expanding mummy Wilds in regular play. Amulet of Dead (April 2021, 96.29%, 5,000x) adds stacked Thoth symbols.

Legacy of Dead continues the escaped pharaoh’s story; Amulet of Dead takes Rich to the Temple of Ramses II, where Thoth awards x2, x3 and x5 multipliers even in regular play. Cat Wilde is his daughter. Book of Ra Deluxe by Novomatic from 2008 shows the earlier Wild/Scatter book formula. Play’n GO uses it in its book slots with each release’s own rules.

Nine cells and the line stake

Perched over the reels is the tiger himself, a round cartoon character with a multiplier badge that pops up beside him. A red-and-gold frame surrounds the grid and the background is dotted with blossoming branches. It’s colourful without being cluttered, and nine large symbols are easy to tell apart on a small screen.

There are five lines, and each needs three matching symbols to pay. Three run horizontally along the top, middle and bottom rows, and two run diagonally. Wins read from left to right, and a line pays only its best combination.

That geometry makes the centre cell special: three of the five lines pass through it, the middle row and both diagonals. Corner cells sit on two lines, and the four edge cells between them on just one. A symbol that stops in the centre therefore matters more than any other.

The studio quotes payouts in line bets. With five lines, divide by five to convert them into total-stake multiples.

The Tiger substitutes for ordinary symbols and is itself highest paying. The centre participates in three lines, a corner in two and other edge cells in one; this is geometry rather than a payout guarantee. With five equally staked lines, divide a pay value by five for the total stake: one firecracker line pays 1x, oranges 0.6x. Only the highest win on each line counts.

Respins and an all-winning screen

The Fortune Tiger feature can trigger at random on any spin. One symbol (not the Wild) is chosen, and the reels fill only with that symbol, Wilds or blanks. Matching symbols lock in place while the other positions respin, and the respins continue as long as new matching symbols or Wilds land. When none do, the feature ends and the win is paid.

Each new matching symbol or Wild sticks and earns another respin; all open cells producing no additions end the feature. Wild cannot be the selected symbol. Blanks allow the round to end with a partial board, so entry guarantees neither a full grid nor a large prize.

Classic free spins are absent. The main source of big wins is a x10 multiplier that applies whenever every symbol on the reels is part of a win. The condition doesn’t require a single symbol: three horizontal rows of different symbols qualify, as long as each row wins.

The official sheet shows exactly that case, with rows of coin bags, firecrackers and oranges. Each row pays on its own, and all nine symbols are in a win. At a €0.25 stake that’s 10 + 5 + 3 = 18 line bets, or €0.90, and €9 after the multiplier, 36x the stake.

The multiplier does not require one type in every cell. A full Tiger screen pays five lines at 50x the total stake and then 10x, giving 2,500x. A full envelope screen without a three-Wild line pays 8x before the multiplier and 80x after. These calculate layouts rather than frequencies or promised feature scenarios. Early termination at the cap is unspecified.

Maths, stakes and the Fortune series

96.81% RTP splits into 64.96% from ordinary play and 31.85% from the feature. Hit rate is 23.15%: 22.16% ordinary-play hits and 0.99% feature-winning outcomes. The last figure is not the frequency of all entries, so it cannot become one trigger per hundred spins, waiting intervals or a mean prize for every entry. Volatility is medium. Return shares likewise do not predict payouts in a session without a feature.

Big Win at 20x–35x is listed once per 68 spins, Mega Win at 35x–50x once per 2,438 and Super Mega at 50x or above once per 291. Fortune Ox figures are respectively 132, 1,220 and 409. These are payout categories rather than separate features; symbol values and the 10x condition alone do not explain the frequency differences. Stake combines a 0.05, 0.5 or 5 size, a 1–10 level and five lines, giving 0.25–250. There is no bonus buy or conventional free-spin round.

Fortune Mouse has 3×3, five lines, 96.96% RTP, a 73.64% base share, 21.84% hit rate and a 1,000x ceiling. Fortune Ox uses 3-4-3 and ten lines: 96.75%, a 72.58% base share, 21.32% hits and 2,000x; its feature guarantees a win and 10x requires one symbol type on the grid. January 2024’s Fortune Dragon has 3×3 and five lines: 96.74%, a 65.36% base share, 21.33% hits and 2,500x, with a multiplier reel instead of sticking symbols. Mahjong Ways 2 offers cascades and a 100,000x ceiling.

CollectR: each collected gem pays

Each drop lands four birds (blue, green, purple and red) together with gems and special symbols. A bird moves to adjacent squares, horizontally or vertically, collecting gems of its own colour, and every gem collected pays its value. There’s no minimum count: one matching gem is already a win. Diagonals don’t count, so a gem sitting at an angle to the bird is out of reach until a path opens through a neighbouring square.

Feature symbols are different: every bird collects them, whatever its colour. When no more wins are available but a swap could create one, adjacent birds may randomly trade places. That small rule often rescues a drop, for example when a red bird boxed in by green gems swaps with the green bird and both suddenly have something to collect.

All four colours have the same RTP. Position determines neighbouring cells: two in a corner, three at an edge, four inside. This geometry does not establish long-path probability or feature-symbol frequency. A Wild substitutes for a gem at its current level; a transform recolours a group to the collecting bird’s colour or converts it into feature symbols; a coin pays its value from the bet.

Five levels and the feature meter

An ordinary drop starts at gem level one, with a maximum of five. A white upgrade raises the collecting bird’s colour by one to three steps; if that colour is maxed, a random other colour is chosen. A multicoloured upgrade raises all four. Three steps from level four reach only five, with no excess carried over. Once every colour is maxed, upgrades add nothing. Full gem values by level are unlisted.

Everything collected except bonus symbols fills a feature meter over the grid. When it is full you receive three chests: once the birds stop moving, three gems on the grid turn into feature symbols. Several awards can build up and fire together.

Everything collected except bonus symbols advances the meter. Several awards can accumulate and activate together; a chest guarantees neither a bomb nor a large payout. The required number of collected items is unspecified.

Bombs and bonus persistence

A collected bomb goes off once no wins remain. It removes every nearby symbol except feature symbols and triggers a redrop to fill the gaps. The birds leave the grid for the blast, return to their nests and take new positions. Most importantly, the explosion expands the grid, up to eight rows by eight columns.

The grid grows from twenty-five to sixty-four cells,2.56 times the area. In base play, expansion lasts to the end of the drop. Birds return in new positions, but grid size alone guarantees no payout. Three bonus symbols collected in a round award five free drops. The bonus starts at the current grid size; size, gem levels and meter persist to its end. Three more bonus symbols extend the round, but the exact added drop count is unlisted. The total pays at the end.

For example, a red bird collects four level-one gems, then a two-step white upgrade: later red gems pay at level three. A bomb collected later explodes after available collections finish and triggers a redrop. In the bonus, the achieved level and expansion pass to the next free drop; the next ordinary drop starts at level one again. This illustrates action order rather than a cash total.

Five X-iter modes

Modes can only be bought outside the bonus and share its 94% RTP. Prices multiply the selected bet: at 0.20 they cost 0.60, two, five, twenty and one hundred respectively. Bonus Hunt raises bonus probability by more than four times, but the absolute trigger rate is unknown. Super Bonus differs from regular entry by starting on 8×8 and making every upgrade raise all colours.

The bonus buys explains feature cost and content. The most expensive buy does not imply the highest return.

Parameters and follow-ups

RTP is 94.00%, volatility seven out of ten, and hit frequency 26.8%. That is a paying-drop probability rather than the frequency of bonuses or awards above the bet. Stakes are 0.2–100, with a 10,000x ceiling: two thousand at the minimum and one million at the maximum. Reaching the limit ends the round and credits the accumulated total. RTP helps distinguish return from hit frequency.

the second game uses 6×6, amber symbols with seven upgrades and popcorn,94% RTP, a 10,000x ceiling and volatility eight out of ten. a Wild West adventure moves the birds to the Wild West. Pirots 4 launched in July 2025 with 6×6, space, Space Bandit, the Lost in Space coin game and a 10,000x ceiling. ELK presented it with a “time-based evolution” countdown, but the specific change is unestablished here. Pirots X has 5×5, clusters from five and a global multiplier; these entries offer X-iter ranges from 3x to 500x.

Reactoonz has a grid and feature meter, while Jammin’ Jars puts multipliers on jars. Here a single reachable gem pays through its collector, so another game’s cluster threshold cannot be imported. Other releases appear on the ELK Studios page.

Symbol size and persistent Nitro Reels

Combinations start at three of a kind on consecutive reels from reel one. Card ranks from J to A pay least, gang emblems form the middle tier, and the four bosses top the table. Only the highest win per way is paid, and a line made entirely of Wilds pays as the top symbol. Stakes run between 0.2 and 50 per spin, and the paytable converts every value to your chosen stake.

Symbols and Wilds come in four sizes: standard 1×1, Super 2×2, Mega 3×3 and Epic 4×4. When ways are counted, a giant symbol equals the number of cells it covers, so an Epic boss is worth sixteen standard ones. Gaps under big symbols and under big Nitro Reels are filled with 1×1 symbols of the same kind.

The Wild covers everything except bonus and super bonus symbols, Both Ways, Redrop and the Nitro feature symbols. It has an odd extra trick: if it lands inside a feature frame and takes part in a win, it flips into a Nitro feature symbol after the payout, so an ordinary substitution can set up a feature on the next step.

Each win starts an avalanche that removes winners, drops new symbols and adds a row, up to eight. Nitro Reels behave differently from ordinary symbols: one that is part of a win doesn’t explode but stays and respins during the refill. The chain continues while new wins land, and the next regular spin returns to the starting height.

Eight rows without special reels give 262,144 ways. Base-game height resets before the next paid spin; a winning Nitro Reel survives within the current chain and respins during the refill. A small one occupies two positions and holds 4, 6, 8, 10 or 12 identical 1×1 symbols. A big one occupies six positions and holds 2–6 symbols of 2×2 size; its overhead indicator shows the count.

At four rows, replacing two cells with a twelve-symbol small Nitro Reel makes a column of fourteen: 4⁵×14 = 14,336 ways rather than 4⁶ = 4,096. Two on different columns give 4⁴×14² = 50,176. This counts a specified layout rather than win probability. Megaways explains cell multiplication; here cascades and Nitro Reels change the height.

Three green features and two grid-wide effects

The green Nitro symbols work on Nitro Reels on their own and adjacent reels, and they fire after everything has landed but before the payout:

• Nitro Match makes the affected Nitro Reels match a paying symbol on a neighbouring reel, when that improves anything;
• Nitro Upgrade raises the indicator, adding symbols to the affected Nitro Reels;
• Nitro Wild turns every symbol in the affected Nitro Reels into a Wild.

Nitro Wild changes the affected Nitro Reels, not every ordinary symbol in a column. After activation, a Nitro symbol may randomly become Wild; a Wild inside a feature frame that participates in a win becomes Nitro after payment. Substitution can therefore set up another effect, but undisclosed probabilities prevent estimating how often this chain happens.

Unlike the green features, Both Ways and Redrop affect all reels. Both Ways activates before the payout and makes every way pay from right to left as well, starting from the rightmost reel. It stays on for the rest of the avalanche, so every cascade in that chain pays in both directions.

Both Ways adds matches starting from the right edge rather than automatically doubling every payout: three bosses on reels 4–6 can now pay. Redrop acts once no wins remain. Blimps, Nitro Reels, Nitro symbols and used Redrop/Both Ways symbols stay; special reels respin, and used symbols flip and may supply another feature. Two retained blimps can, for example, be joined by a third on the new drop.

Free spins and the Super Bonus

Three, four, five or six blimps respectively award 8, 12, 16 or 20 free spins; retriggers use the same scale. All Nitro Reels remain sticky until the round ends. Free spins start at four rows: after every winning spin the safety level raises the next spin’s starting height by one, up to eight. This preserved height differs from refilling within one spin.

A trigger or retrigger including a super bonus symbol turns the round into the Super Bonus, with eight rows immediately and permanent Both Ways. This symbol appears only in a small Nitro Reel and counts as one regardless of its indicator until it spins out. The ordinary round needs winning spins to grow, while the Super starts at full height; both can extend without guaranteeing a particular result.

X-iter options and the series

In the base game X-iter offers 2x for more than double the bonus chance, 10x for a big Nitro Reel, 25x for Nitro Match together with Both Ways, 100x for free spins and 500x for the Super Bonus. bonus buy explainer explains feature purchasing. Base play and all five options share 95.00% RTP, which does not predict an individual buy. Volatility is 7/10 and hit rate 19.2%; bonus frequency is unspecified. Reaching the 50,000x cap ends the round, but no mandatory combination of features is established for it.

The first Nitropolis has 96.1% RTP, 8/10 risk, 19.8% hits, a 10,000x cap and up to 85,155,840 ways. The second has 95%, 8/10, 20%, 10,000x and the top Nitro Booster, reaching 191,102,976 ways. the fourth game has 94%, 8/10, 18.1%, the third game’s ceiling, an oil rig and Nitro Multiplier. Katmandu Gold also grows its grid; Money Train 4 uses another format with a 150,000x cap. The developer is ELK Studios.

Lines and the tomb’s two roles

Wins pay on fixed lines from left to right. Premiums need two matches, card symbols need three. These figures are multiples of your total bet for a single line; with the full stake spread across ten lines, each line carries a tenth of it.

One symbol does two jobs. As a Wild, the tomb substitutes for everything else and completes lines. As a scatter, it pays anywhere on screen based on your total bet: 2x for three, 20x for four and 200x for five. Three or more also trigger free spins, so the bigger scatter payouts always arrive together with the bonus.

Three or more tombs give a scatter award alongside free-spin entry, so the previous claim that three or four pay without triggering free spins is wrong. Line coefficients are total-bet multiples: a tomb on reel three after two Mummies makes a 10x three rather than a 1x pair. These values do not establish match frequency.

Eight spins and additional special symbols

The feature begins with eight spins and one randomly selected ordinary symbol, excluding the tomb. Normal lines pay first. The special expands when present on two reels for a premium or three for a card; the reels need not be adjacent. Expansion pays all ten lines additionally. Selection weights for the nine ordinary types are undisclosed: one of nine types does not establish a 1/9 probability.

Three or more tombs in the feature add eight spins and another special symbol while retaining the previous one. Retrigger count is unlimited, but the rule after all nine types have been selected is unspecified. Two retriggers give 8+8+8 = twenty-four spins, three give thirty-two, without establishing those rounds’ probabilities. free spins explains retriggers. Multiple accumulated types do not guarantee an expansion on the next spin.

Counting non-adjacent expansions

Special Anubis on reels one, three and five pays 3x per line × ten = 30x. An ordinary three-Anubis line starting from reel one would pay 3x rather than the incorrect example’s 0.3x. If K and Horus are special, three K reels give 0.5x×10 = 5x and two Horus reels another 5x: 10x together beyond ordinary pays when the layout permits both expansions.

Five expanded reels give 5,000x for Mummy, 1,600x for Anubis, 600x for Tutankhamun/Horus, 120x for A/K and 80x for Q/J/10. These are single-line values × ten. A Mummy screen reaches the ceiling, but that does not prove an exclusive route to a round total: multiple pays, normal lines and scatters cannot be excluded. The exact cap scope and forfeiture of remaining free spins are unspecified in the supplied rules.

Maths, the card gamble and predecessor

RTP versions are 96.58%, 94.51%, 91.51%, 87.56% and 84.55%; volatility is high, rated eight, stakes are 0.01–100 and the stated maximum is 5,000x. The technical sheet lists one cap event per 8,928,571 spins. Hit and bonus frequencies are undisclosed; the free-spin return share cannot be assigned from the mechanic description alone. There is no bonus buy.

Where the operator enables the card gamble, a base-game win can be risked on colour or suit up to five times. A wrong guess loses the entire staked win; correct-answer multipliers and probabilities are unspecified, so assuming a fair deck does not replace build rules. The gamble is unavailable in free spins and adds no specials. Book of Dead of 14 January 2016 has 96.21% RTP, the same cap and ten starting spins, adding ten on retrigger without a new special.

Book of Dead vs Legacy of Dead compares the games. Rise of Dead uses twenty lines, Mega Stacks and medium volatility; Legacy of Egypt develops the Egyptian theme differently. The developer is Play’n GO. These compare rules and configurations rather than promising a stronger result from every long bonus.

Reels and smoke-ring Wilds

In regular spins, each reel shows two to seven symbols, and payouts come from matching symbols lined up from reel one onward. Five reels of seven give 7 × 7 × 7 × 7 × 7 = 16,807 ways, which is the figure BTG quotes for the base game. Most spins offer fewer: heights of 3, 6, 4, 7 and 2 give just 1,008.

Card ranks 9 to A, decorated with characters from the story, pay the least; the premiums are three gems and the Queen, who pays for just two of a kind. The regular Wild lands on reels 2 to 5, so reel one always needs a real symbol. That makes the Queen especially handy, since two in a row only needs reels one and two, and a Wild on reel two fills the second spot easily. Exact values for each symbol are in the game’s paytable.

Now and then the Caterpillar wakes and blows smoke rings, adding up to four Bonus Wilds that multiply wins by 2x or 3x. The modifier is random and belongs to regular play, changing the current layout.

An illustrative 0.4x match with a 3x Bonus Wild pays 1.2x. The combination rule for two Bonus Wilds and Caterpillar, cupcake and bonus frequencies are unspecified. Any-pay hit rate is 38.04%, compared with Danger High Voltage 2’s 32.6% and Max Megaways 2’s 36.08%, without establishing the size or regularity of large pays.

Cupcakes and Queen’s Reels

The scatter is the White Rabbit himself, whom BTG calls grumpy. Three of them award 15 free spins. Each reel starts the round five or seven symbols high. A cupcake symbol extends its reel, by two symbols at a time according to the studio, and when a reel reaches 12 symbols you receive 3 to 12 extra free spins and the reel becomes a Queen’s Reel with more Wilds and Queen symbols. Stretch all five reels and the ways reach 12 × 12 × 12 × 12 × 12 = 248,832.

5 symbols — After 1 cupcake: 7; After 2: 9; After 3: 11; After 4: 12, Queen’s Reel.

7 symbols — After 1 cupcake: 9; After 2: 11; After 3: 12, Queen’s Reel; After 4: none needed.

Full height changes the reel contents, adding more Wilds and Queens rather than only cells. A cupcake does not itself award spins before twelve is reached. Reel one supplies starting symbols and reel five participates only in five-reel combinations; these different roles do not establish a published value ranking.

Illustrative heights of 12,7,9,5,12 give 45,360 ways. Growing reels three and four to twelve gives 12 × 7 × 12 × 12 × 12 = 145,152. Ways grow as the product of heights without predicting a pay. Free-spin extensions here depend on a full-height reel.

Feature Drop and the active configuration

Feature Drop lets you buy free spins at any time. The full price is 100x the stake, but every Feature Drop symbol that lands in the base game lowers it, and if it hits zero the bonus triggers for free. The developer described that symbol as a “BTG” coin and openly offered the choice: wait for a value bet or jump straight in.

Buying opens the same round at a changed entry price. The amount of each reduction and discount persistence across a stake change or exit are unestablished. Spins while waiting remain paid, so a lower menu price is not a calculation of total session savings. Bonus buying skips the trigger wait without guaranteeing growth on every reel.

The studio page gives 96.42% RTP; the client identifies the active setting. Volatility is high. Evolution lists a 17,416x limit while some reviews quote 13,000x. Early termination and maximum-win probability are unspecified; the free-spin description does not establish an exclusive route.

White Rabbit 2 and other progressions

In November 2025, eight years on, White Rabbit 2 arrived. It kept the growing reels and cupcakes but added Hold and Spin with Megapots jackpots and storybook characters that change the prizes.

In the sequel cupcakes operate in both free spins and Hold and Spin, with grown reels carrying between features. Every full reel adds three to twelve spins, with up to five extensions. Storybook characters influence Megapots prizes. The original has one bonus feature and a falling price rather than a fixed buy.

Kingmaker builds multipliers rather than height. Bonanza preceded the Megaways family; its diamonds and Dragon Born’s dragon served as comparisons for the Queen’s detail. Push Gaming’s Fat Rabbit grows a rabbit with carrots. White Rabbit’s Queen is deliberately dark and its Rabbit stern; the riddle of her anger is revealed in Queen’s Reels.

Wonderland, second time round

The original White Rabbit Megaways came out in October 2017, and the sequel does not try to copy it. The studio describes it as a “madcap” mix of Megapots, Hold and Spin and growing reels, where familiar faces meet fantastic mechanics.

The cover shows an elegant lady with a doubled gaze and a logo in a golden frame. The studio adds no plot beyond one line: “Wonderland returns” and it is crazier than before. For the player the geometry matters more than the scenery: five reels whose height changes on the fly.

What the studio sheet gives and what it leaves out

The studio calls its win caps “exposure”. In the base game without bonuses it is 516 bets, while the maximum exposure, bonuses included, is 133,100x. The 258-fold gap (133,100 ÷ 516) shows that nearly everything big lives in the bonuses; the studio gives no rate for reaching the ceiling. The highest symbol pay on the sheet is 25.

The RTP comes in three versions: 96.36-96.37%, 94.15-94.20% and 86.22%. The extremes are more than ten percentage points apart, which matters in a game where a bonus can cost a hundred bets, so check the version in the operator’s help.

The sheet has no volatility, no stakes, no hit rate and no bonus rate, so any dry-spell estimate for this game would have to be made up. Nor does the studio offer a direct demo link: Play For Fun on the game page opens a social casino, while some operators run their own demo mode.

16,807 ways: seven to the fifth power

The number 16,807 is no accident: it is 7 × 7 × 7 × 7 × 7. In the base game each of the five reels can hold up to seven symbols, and the ways are the product of the heights. The number 248,832 is just as tidy: 12 to the fifth power. In the bonus the reels grow to twelve symbols.

The bonus therefore offers 14.8 times more ways than the base game (248,832 ÷ 16,807). If you judge the density of winning combinations, this is the most important figure in the game: it explains why bonus rounds pay on a different scale while the base game lives in another weight class.

The Cupcake: a treat that grows the reel

Each time a Cupcake symbol lands, it adds one more symbol to its reel. The effect works in both Free Spins and Hold and Spin, so the reels in the bonuses grow, and with them the number of ways. The growth is not linear: raising all five reels from 7 to 8 symbols adds 15,961 ways, while the step from 11 to 12 adds 87,781. That is why the last cupcakes are worth more than the first, even though real reels are seldom all the same height.

The “field for coins” in Hold and Spin grows as well. The taller the reels, the more positions a coin can take, and the less often the board fills completely. That is no guarantee of big payouts, but stretched reels add cells for every kind of prize.

Hold and Spin: six coins and three respins

Six or more Coins start Hold and Spin with three respins. Each symbol becomes its own reel that spins and reveals Coins. A Coin may carry a Bonus Prize, a Wonderland character or a Megapots icon. Every new Coin resets the respins to three.

The round does not end while new coins keep appearing. It is a relative of the Hold and Win genre, but the board is bigger: reels can stand twelve symbols tall, so the round lasts longer than in games with a comparatively small field.

Seven heroes on the coins

The heroes differ in worth. The Red Queen and Alice work with the sum of prizes on the grid: the more prizes are lying there when they appear, the stronger the effect. The Rabbit boosts a single prize, and is best hoped for on a coin with a large value. The Dodo acts locally, within one reel, and so is worth most on a tall reel.

The result of a round comes from prizes, heroes and the order they arrive in, not from the number of coins. If the Rabbit has already multiplied a 10-bet prize to 100, a Red Queen landing after it collects a sum that includes that hundred; had she come first, the hundred would not yet be on the grid.

Megapots and the doubled prize

The Mini, Midi and Mega Megapots hang above the reels, their sums shift on every spin, and they are available only inside Hold and Spin. A prize is awarded for three matching Megapots icons on coins. The studio gives no sizes for the Megapots, so they cannot enter any estimate of the bonus.

If after all respins every reel has revealed at least one coin, the whole bonus prize is doubled. The studio calls it the ultimate Wonderland reward. The condition is tough: with tall reels there are hundreds of positions, but it takes every reel, not every position. The Cupcake helps here too: the taller a reel, the more positions it has and the better the chance it holds at least one coin.

Free Spins: 12, 16 or 20 spins

Three, four or five golden scatters award 12, 16 or 20 Free Spins. In the bonus the reels grow as Cupcakes land. When a reel reaches full height you get another 3 to 12 spins. Up to five retriggers are allowed.

With five retriggers a round falls, by the rules, between 27 spins (a three-scatter start and 3 spins per retrigger) and 80 (a five-scatter start and 12 per retrigger). A bought bonus always starts at 12 spins, so its range is 27 to 72. These are bounds set by the rules, not a typical round: how many spins an average bonus really gives, the studio does not say.

Two buy buttons

Hold and Spin is bought for 35 bets and 12 Free Spins for 100, and an operator may switch both buttons off. Buying Free Spins puts a price of 8.3 bets on each starting spin (100 ÷ 12), and only retriggers bring that down. The button sells not “12 spins” but 100 bets in exchange for a shot at a big round, without the head start that four or five scatters give.

Hold and Spin is almost three times cheaper, yet it is not a trimmed entry into the same bonus but a different round: one run of respins with prizes. The sheet gives no average return for either button, so there is nothing to compare the two bonus buys on.

The sequel beside the original and its neighbours

White Rabbit Megaways — Release: 25 Oct 2017; RTP: 96.42%; Max win: 13,000x.

Danger High Voltage 2 — Release: 23 Oct 2024; RTP: 96.77%; Max win: —.

White Rabbit 2 — Release: 25 Nov 2025; RTP: 96.36%; Max win: 133,100x (exposure).

On RTP the sequel is close to the original, its ceiling is roughly ten times higher, and its mechanics are different: coins and heroes replace cascades and multipliers, so players who remember the first game should treat White Rabbit 2 as a separate one. The original has its own page, White Rabbit Megaways; the studio’s 2024 release is covered under Danger High Voltage 2, and the rest of the developer’s games are listed under Big Time Gaming.

Arcade styling and PopWins growth

See-through reels show gems, dragons and a brooding castle, with retro-electronic music recalling eighties arcades. The studio’s hot-and-cold imagery conveys a mood rather than a schedule of wins. Symbols include card ranks, gems, dragon-held gems and a super-premium type; Wild substitutes for ordinary symbols. Review claims that premiums appear only through pops lack separate rules confirmation.

Wins come from matching symbols on adjacent reels, counted left to right and right to left. The number of ways depends on reel heights: multiply the five heights together for one direction and double it for both. That gives both the starting figure and the maximum.

Each reel starts three high and returns to that height after a chain. Way count measures possible combinations rather than winning ways or continuation probability. A specific symbol needs matches on adjacent reels from the relevant edge.

After wins are paid, participating symbols pop and each becomes two new symbols. Each pop adds a reel position up to seven high. The grid is checked again and the process repeats with another win. The entire chain belongs to one initial stake, with no extra charge per step. A blank re-evaluation ends it.

Pops Vault and Bonus Mode

Every popped symbol is collected in the Pops Vault, and each batch of seven adds 1x to the win multiplier. The multiplier applies to pays within the run and can keep climbing while the chain lasts.

A made-up sequence: the first win pops four symbols, so the vault holds four. The next step pops five more, the count passes seven and the multiplier goes up by one. A third step pops six, and after fourteen pops it rises again. The logic is simple: the longer the chain and the more symbols in each win, the faster the multiplier grows. A short run of one or two wins barely touches it, which is why the game’s potential lives almost entirely in long chains.

Once all five reels reach seven symbols, Bonus Mode begins within the same chain. One random symbol immediately becomes a Wild. Every seven pops now add 2x, and a popped symbol becomes one replacement, preserving height. There is no separate spin counter; the mode ends with the chain. The Wild guarantees no new win, and multiplier growth does not carry between independent spins.

Grid size and growth increments explain the feature’s states, but without symbol probabilities they cannot establish that a height necessarily speeds wins, most chains end on step two, or how many Bonus Modes occur in five hundred spins. Starting multiplier, its overall upper bound and individual-value frequencies are undisclosed.

Maths and the AvatarUX family

RTP is 96.40%, with no other builds enumerated; stakes are 0.1–100. Maximum is 72,188x, with chain termination at the limit unspecified. Hit, Bonus Mode and maximum frequencies are unpublished. A super-high rating describes risk rather than promising alternating long losses and large wins. The original has no scatters, separate free-spin round or Bonus Mode buy.

After PopRocks, AvatarUX developed CherryPop, CherryPop Burst, HippoPop, AstroPop and MonkeyPop 2, alongside ZapReel, MultiPop, StickyPop and Xpops. Shared branding does not make their rules identical. Bonanza Megaways changes reel heights randomly each spin rather than through pops; Reactoonz runs cascades on a cluster grid.

CollectR: birds collect amber of their own colour

In place of winning lines there is collecting. Birds travel across the grid and gather amber symbols of their own colour. Each collection pays, and sometimes brings feature symbols too. Every collected amber symbol at once fills the feature meter.

Several consequences follow. A payout depends not on the layout of rows but on which gems a bird manages to reach, that is, on how the field is arranged. The more of the grid matches a bird’s colour, the longer its path of collecting. And on the official artwork the birds come in four different colours, each with its own set of gems.

Amber climbs seven steps

Amber symbols upgrade up to seven times. Each step raises the payout, and visually the gem transforms, from a plain drop to a gem in a crown. The upgrades come from feature symbols, not by themselves.

So the main aim of the base part of the game is not a win on one spin but the accumulation of steps: the higher a gem’s level, the more each later collection pays.

The feature meter, three chests and eight feature symbols

Every collected amber symbol goes into the feature meter. When the meter fills, the player receives three chests with random feature symbols. The meter works as a power-up timer: while the birds roam the field it stores progress, and once full the game drops three gifts at once.

The studio names eight kinds of feature symbols, listed on the sheet in this order:

• Instant coin wins.
• Symbol upgrades.
• Wilds.
• Game grid expansions.
• Redrops (respins).
• Symbol transformations.
• Popcorn.
• Bonus symbols.

The set is broad: the grid grows, gems upgrade, birds get new paths, and three bonus symbols lead into a separate game.

Popcorn: a bridge across empty cells

A collected popcorn symbol fills empty positions with popcorn. Birds can cross each such cell once to reach new gems. It is the only symbol in the list that directly changes the birds’ route and not just the result.

The order of events matters as much as the set of symbols: a bird heads for gems of its colour, collects them, sometimes runs into an empty cell, and that is where popcorn helps. Two rounds with the same set of gems can therefore end differently if the birds took different routes. How a route is chosen is not disclosed.

The bonus game: what carries over on entry

Three bonus symbols collected in a round start the bonus. The sheet stresses four things that are not reset on entry: the grid size, the progress on the feature meter, the payout level of amber and the set of extra bonus symbols.

So preparation before the bonus weighs a lot: if you reach the bonus with a widened grid and upgraded amber, it starts from a high base, and with a small grid and zero upgrades you begin from nothing.

X-iter: five entries at 3 to 500 bets

X-iter lets you jump into the action without waiting. The studio sheet lists five modes:

No mode lifts the ceiling: the Bonus Game and the Super Bonus run into the same 10,000x, so even the luckiest Super Bonus returns no more than twenty times its price. The ELK sheet shows the same through a line many studios omit, the max exposure meant for operators: 1,000,000 euros per round, exactly the top stake multiplied by the cap. Some operators have the buy modes switched off, since several countries ban bonus purchases.

A strict comparison of the modes with normal play is impossible: ELK publishes neither the RTP of the modes nor the bonus frequency nor the probability of the maximum. The open material also lacks the meter size, a pay table for the gems, the number of grid expansion steps and the odds of individual feature symbols. The RTP version number and coin sizes appear only in the in-game rules, and the ELK demo opens right in the browser, with no account and play coins.

Pirots 2 in the series and among ELK games

The first part, Pirots, came out on 7 March 2023, and Pirots 4 followed on 24 July 2025. The mathematical frame is the same across the series: all three games carry an RTP of 94.0% and the same ceiling, while the mechanics change. The second part rests on amber and popcorn.

On volatility ELK puts three of its games on the same mark, 8 of 10: Pirots 2, Pirots 3 and Cygnus 2. They share the same RTP as well and differ in ceiling and mechanics. Among other studio slots, Wild Toro II has 95.0% and 10,000x, Nitropolis 4 94.0% and 50,000x, and Ecuador Gold 96.1% and 2,500x: ELK often sets the RTP below 96% and offsets it with a high ceiling. Against that background Pirots 2 looks middling on maximum and on RTP, and it stands out for the collecting mechanic.

The golden ox and a 3–4–3 grid

The reels take up the top half of the screen, and under them stands the ox itself, a large figure that turns gold when the feature kicks in. The palette is red and gold, and the symbols are big enough to stay legible on a small phone. The technical sheet gives an optimal resolution of 1080 × 2340 and a required 19.5:9 aspect ratio, so the game was designed for a phone held upright. It runs on desktop too, but appears as a narrow column in the middle of the screen.

Three reels are three,four,three symbols tall, with ten cells and ten fixed lines. Each line takes one cell per reel; three matches from the left pay, with only the highest award per line. The screen paytable shows cash at the current stake, while the official sheet gives line coefficients, divided by ten for one line’s total-stake value.

The Ox is the Wild, covering for other symbols while topping the paytable itself. Three oxen on a line pay 200 line bets, twice as much as ingots.

Substitution follows a “best pay wins” rule. Ingot, ox, ingot on a line counts as three ingots. Three oxen pay the ox price rather than the price of whatever the ox might have stood in for. Since every cell belongs to several lines, a single Wild can close more than one combination when the right symbols sit nearby.

At a €1 total stake, a line of three pouches pays 20 × €0.10 = €2 and another with two chests and a Wild pays 50 × €0.10 = €5, totalling €7. One firecracker line pays 0.3x and an orange line 0.5x: a paying line can return less than the whole bet. These prices do not establish the share of partial payouts.

Respins guarantee a combination, not its size

The key mechanic is the Fortune Ox feature, which may fire at random on any spin while the reels are turning. The ox under the reels turns gold, reels 1 and 3 land the same symbols, and the reels respin until a winning combination forms, so a trigger guarantees a win on that spin.

The logic is simple. With identical outer reels, the only thing missing for a payout is a match on the middle reel. The reels keep respinning, and the moment a matching symbol or an ox lands in the right spot, a line closes. How many respins it takes doesn’t matter; only the final screen is paid.

With matching outer columns of ingots,envelopes,oranges, a suitable envelope in the middle can close a 1x line. Matching ingots and a separate orange line with an ox can pay 10x+0.5x=10.5x along those lines. These are illustrative endings without assuming other eligible lines are absent. The final screen pays; interim blank respins do not generate separate awards.

A single-type full screen and 10x

Every cell holding one type and/or Wilds activates 10x. Before it, ten full-screen lines of oxen/ingots/chests/pouches/envelopes/oranges/firecrackers pay 200/100/50/20/10/5/3 times the total stake. After it they pay 2,000/1,000/500/200/100/50/30 times. All oxen reach the 2,000x limit. This is not merely all symbols participating in different wins, which is Fortune Tiger’s different condition.

If both outer reels and two middle cells hold ingots and the other two hold oxen, every line contains actual ingots and pays that price rather than the Wild’s. Total is 100x × 10 = 1,000x. The studio sheet’s example of a 200 stake and 2,000 before multiplication becomes 20,000: 100x, compatible with full-screen envelopes.

PG Soft’s return shares and frequencies

The 96.75% RTP comprises 72.58% regular play and 24.17% from the feature. Hit rate is 21.32%: 20.55% regular spins and 0.77% the feature, approximately one trigger per 130 paid spins. Return shares are not separate RTPs for a no-feature session; the mean interval is not a schedule, and these figures establish neither a typical prize nor recovery of prior losses. Medium volatility does not guarantee a smooth balance either.

Big Win at 20x–35x is listed once in 132 spins, Mega at 35x–50x once in 1,220 and Super Mega from 50x once in 409. The largest category is more frequent than the middle one. Full screens from oranges begin at 50x and can jump over the intervening band, but these thresholds do not prove the cause of every frequency difference. Screen weights, maximum-win probability and the respin-count limit are unspecified. slot specs helps read each measure separately.

Mouse, ox and later zodiac signs

Fortune Mouse — Zodiac year: Rat, 2020; Grid and lines: 3×3, 5 lines; RTP: 96.96%; Max win: 1,000x; Core mechanic: Three Wilds on the middle reel, outer reels respin until a win.

Fortune Ox — Zodiac year: Ox, 2021; Grid and lines: 3-4-3, 10 lines; RTP: 96.75%; Max win: 2,000x; Core mechanic: Matching outer reels, respins until a win, x10.

Fortune Tiger — Zodiac year: Tiger, 2022; Grid and lines: 3×3, 5 lines; RTP: 96.81%; Max win: 2,500x; Core mechanic: Sticky respins, x10.

Fortune Rabbit — Zodiac year: Rabbit, 2023; Grid and lines: 3-4-3, 10 lines; RTP: 96.75%; Max win: 5,000x; Core mechanic: 8 spins with prize symbols only, up to 500x.

Fortune Dragon — Zodiac year: Dragon, 2024; Grid and lines: 3×3, 5 lines; RTP: 96.74%; Max win: 2,500x; Core mechanic: Multiplier reel up to x10, 8 spins with 2–3 multipliers.

Fortune Snake — Zodiac year: Snake, 2025; Grid and lines: 3-4-3, 10 lines; RTP: 96.75%; Max win: —; Core mechanic: Wilds on the middle reel, x10 for four Wilds.

Fortune Mouse was billed as PG Soft’s first game of 2020: its three middle-reel Wilds leave the outer reels respinning. Ox was the first 3–4–3 entry and reversed the respin sides, increasing the limit from 1,000x to 2,000x. Fortune Rabbit has a 5,000x limit; the 500x mentioned for its prize spins is a separate value rather than its overall maximum. Fortune Tiger applies 10x when all symbols participate in wins. Mahjong Ways 2 differs with cascades and a 100,000x limit. Other games are on PG Soft.