| Spec | Value |
|---|---|
| RTP | 93.70% default — low even for hold-and-win; the older Charming Lady siblings ran 94.99% / 95.01%, and Novomatic certifies multiple tiers per market |
| Volatility | High (5/5); σ spec-derived ~10-16 per A$1 — no PAR sheet, no community sample yet |
| Max win | 9,000x stake |
| The engine | No classic free spins — the Boom Spins hold-and-win IS the game: 6+ Boom Bonus scatters trigger, each scatter past the sixth adds one spin to the six-spin floor; the grid expands to 7×5, Boom Pays open on reels 3 and 5, and held symbols auto-recombine into the Lady each respin chasing the best combination; a Double Coin doubles the final Boom Pays; two fixed jackpots pay up to THREE times per round while the Grand and Major progressives are MUTUALLY EXCLUSIVE — only one can land per round |
| Bet | A$0.10-A$100 per casino |
The winning line
Charming Lady’s Boom Coins offers no free-spins safety net. Nearly all of the 93.70% sits inside one event: the 6-scatter Boom Spins, where held symbols keep recombining into the Lady on each respin and a Double Coin can double the final result. Check the build first, because siblings run near 95%, then bet 1% of the stash for the trigger-or-nothing wait, treat the scatter count as spins bought, and bank the round at 100-200x.
Step 1 — Read the build; the name hides a 1.3-point spread
93.70% is the confirmed default. The catch? Two older games carry almost the same name at 94.99% and 95.01%, and nobody has confirmed which build AU-facing casinos actually run. Ten seconds in the info panel settles a 1.3-point gap that no decision during play can win back.
Action: Open the “i” panel before the first spin, check the printed RTP line, and make sure the title really says “Boom Coins”.
Watch for: A lobby tile or promo page being treated as proof. Only the in-game figure binds.
Decision branches:
- If 93.70% → the confirmed default; play the plan sized for a punishing cut.
- If a ~95% sibling build shows → materially better maths on the same theme; prefer it.
- If nothing shows and support won’t say → assume 93.70% and shorten the session, or find an operator that publishes.
Step 2 — Bet 1%; every base spin is a lottery ticket toward six scatters
There is no fallback feature, so the base game has one job: deliver the trigger. Hit frequency for this release remains unpublished, but a 5/5 label paired with a 9,000x ceiling tells the story. Droughts stretching for many hundreds of spins are part of the design, not an outlier.
Action: Keep the bet to 1% of the session stash, meaning A$2 on A$200 or A$5 on A$500. Until the bonus arrives, spin count is the only currency that matters.
Watch for: How much of the stash has disappeared compared with the spins used. That is the honest dashboard on a trigger-or-nothing build.
Decision branches:
- If the bankroll drops below 100x stake, well, cut the bet until you’ve got room for several hundred spins. A skinny wallet bricks long before six scatters ever show up.
- If 30% of the stash disappears without a trigger, hold the line. Honestly, the trigger has no memory and it is never due.
Step 3 — Count the trigger scatters; they are spins bought
Six scatters is the minimum, and that gets you six Boom Spins. Every extra scatter adds another spin, giving the held cluster more time to grow. Once you’re in, the machine does the rest. The grid expands to 7×5, Boom Pays open on reels 3 and 5, then the held symbols rebuild into the Lady on every respin. The jackpot setup catches plenty of punters out, mind you. Both fixed jackpots can land up to three times in the same round. The Grand and Major, of course, lock each other out.
Action: Record the scatter count when the feature triggers, then let the round finish on the bet it started with. Changing the stake halfway through achieves nothing.
Watch for: The Double Coin. It doubles the final Boom Pays when everything resolves, so an ordinary looking round can suddenly jump into the bank it band at the very end.
Decision branches:
- If exactly 6 scatters trigger, sure, that’s the minimum floor. Treat any 80x+ exit as a solid result instead of hanging around hoping for jackpots.
- If 7+ trigger, you’ve bought extra spins. This is the round that’s worth sticking with until the Double Coin resolves.
- If the Grand lights, the Major is locked out for that round, and vice versa. To be fair, the repeatable money sits in the fixed pair.
Step 4 — Bank the number; a hot balance is not a new bankroll
The round plays itself, so there’s only one real decision once it finishes. A paying bonus tops the stash back up and starts whispering about that 9,000x cap. Ignore it. On a 93.70% build, the cap is a lottery ticket. Feeding the win back through the base game is usually how you go from in front to behind.
Action: Set the bank it figure before play begins. The sensible band sits at 100-200x total bet. Once a round clears it, close the tab.
Watch for: The full session P&L after the bonus has settled, not just the amount won in that round.
Decision branches:
- If a Boom Spins round clears the target, well, walk. The banked result beats every continuation.
- If it pays under target but gets you back near even, go back to the Step 2 stake and stick to the discipline. Never raise to “make it back in one”.
- If the round lands and the session is still down, honestly, that WAS the payday. Bank the remainder and leave.
The maths that backs the playbook
The cut comes first. At 93.70%, the game keeps 6.30 cents per dollar versus roughly 5 cents on the sibling builds. Across 600 spins at A$2, picking the wrong build adds about A$16 in expected loss for exactly the same play, so the panel check is the most valuable ten seconds of the session. Then comes the structure. A thin base game with the Lady wild doubling, plus the occasional random double, gives you no free spins cushion. That means almost all of an already low return sits inside Boom Spins. If a session never triggers, it can finish well below the headline. That is the maths behind both the 1% sizing and refusing to walk away from a properly funded session too early. The feature economics reward reading the trigger properly. Spins climb linearly with every scatter beyond six. Fixed jackpots may repeat to three. The progressives cannibalise each other, while the Double Coin is simply an end of round variance kicker. With σ in the 10-16 band (spec-derived), the conclusion is blunt. On a trigger or nothing engine, coverage is not one strategy. It is the only one.
What breaks the playbook
- Quitting a funded session on a cold base, sure, is the worst move. You lock in the worst case return by leaving before the one event that pays.
- Raising to force the trigger. Six scatters are never due, mind you, and raising the stake only makes the drought more expensive.
- Waiting for both progressives. Grand and Major are mutually exclusive by design. The fixed pair, to be fair, is where repetition happens.
- Reading the demo as maths. Demo credits carry no live jackpot seed, so it teaches the buttons, not the trigger rates.
- Targeting the 9,000x. On a 93.70% build the cap is decoration. The 100-200x band is the plan.
The cut-off
Build gate: no published figure and no clear answer, well, assume 93.70% and cut the session by a third. Or play the ~95% sibling instead.
Drought line: going several hundred spins without a 6-scatter trigger puts you deep in the tail. Take a break or close the tab. Never top up.
Post-bonus stop: when a round lands and the session is still down, that ends the run. Chasing a second trigger is a worse bet than chasing the first one was.
Hard floor: once 50% of the stash is gone without a trigger, close the tab. Feel does not overrule it.
Strategy by Dave Holloway , Floor Veteran. Last updated: 16 Jul 2026. 18+. Gamble responsibly. Gambling Help Online , 1800 858 858 | Lifeline 13 11 14.
Specs
| Spec | Value |
|---|---|
| Provider | Greentube (Novomatic Interactive) |
| Released | 2026-05-19 |
| Mechanic | Boom Coins / Boom Spins hold-and-win + linked jackpots |
| Reels | 5 (base game 5×3; bonus expands to 7×5) |
| Grid | 5×3 base, expanding to 7×5 in the bonus |
| Paylines | 10 fixed (left to right) |
| RTP | 93.70% on the build catalogued for this release |
| Max win | 9,000× stake |
| Volatility | High (5/5) |
| Hit frequency | Not published |
| Bet range | A$0.10–A$100 per spin (indicative; per-casino) |
| Bonus buy | Not confirmed for this release |
| Theme | Glamorous “Charming Lady” luck-charm fantasy (pink-and-violet magical backdrops, glowing gold coins, four-leaf clovers and horseshoes) |
Cash Connection, Charming Lady’s Boom Coins landed on 19 May 2026 from Greentube, the digital arm of Novomatic. It is the latest entry in the Cash Connection crowd, linked to the same jackpot family that has carried Book of Ra, Sizzling Hot and Dolphin’s Pearl themes for years. The “Charming Lady” name, of course, comes straight from Novomatic’s Lucky Lady’s Charm range, a brand that has been hanging around casino floors for close to two decades. Greentube’s B2B page is light on the hard figures, which honestly is pretty common. It confirms five reels and ten win lines. It also mentions the Charming Lady wild with its win-doubling effect plus the Boom Coins feature. What is missing is the RTP, max win and paytable. Every number below comes from independent catalogue checks and reviews, not a full producer sheet, so any mismatch gets called out instead of hidden.
First up, the Charming Lady name is where things get messy. There are three Novomatic releases using that same name root, but they are separate pokies with different maths underneath. The 2020 Cash Connection, Charming Lady used the old Lock & Spin hold-and-win setup with four progressive jackpots and an RTP around 94.99% to 95.01%. Then the 2023 “Boom” reskin showed up. This page covers the third version, the 2026 Boom Coins release. It brings the rebuilt Boom Spins feature with a 7×5 bonus grid, the 93.70% RTP and the 9,000× ceiling. So if another site lists a different figure under the Charming Lady tag, it has probably blended the versions together.
Symbols & Paytable
Greentube has not put out a paytable for this one, and there is no PAR sheet floating around either. The symbol details below come from the demo screen and have been checked against review coverage. The line-pay values are not public, so they stay blank instead of being made up. That is the reality. The symbols shown in play are included, while the missing numbers stay missing.
| Symbol | Pay (per-symbol multiplier) |
|---|---|
| Charming Lady (Wild) | Not published. Substitutes for all symbols except the Boom Bonus / Scatter, and doubles any win she is part of |
| Boom Bonus / Scatter | Not published. 6 or more anywhere triggers the Boom Spins feature |
| Four-leaf clover, horseshoe, ladybug, diamond / coin (premiums) | Not published |
| Playing-card royals A, K, Q, J (low pays) | Not published |
| Jackpot symbol | Appears inside the Boom Spins feature only; carries a jackpot tier |
| Boom Coin symbol | Feature only; drops additional symbols into empty grid positions |
| Double Coin symbol | Feature only; doubles the final Boom Pays at the end of the round |
The Charming Lady is the one to keep an eye on because she does the heavy lifting during base spins. She works as a wild, replacing every symbol except the Boom Bonus scatter, and any win she touches gets doubled. Honestly, that is where the base game gets its bite. The 2020 version allowed her to expand across reels, but Boom Coins gives her a simpler job, just pushing wins with a multiplier. Mind you, the louder stuff waits for the bonus. Jackpot, Boom Coin and Double Coin symbols do not land on the base reels. That tells you where this pokie wants the money shot. The feature round carries the real weight.
Game rules
Base game
This is a pretty standard line-pay pokie setup. Symbols land on a 5×3 grid, with ten fixed paylines running from the left side. Matching symbols pay from the hidden paytable. Nothing wild there. The Charming Lady wild adds a bit more movement, while random doubles can also show up. They are there to add some extra bite to the volatility, not to make every spin look friendly.
- 5×3 grid with 10 fixed paylines, checked from left to right starting at reel 1.
- Matching symbols on a payline pay according to the paytable.
- The Charming Lady wild replaces every symbol except the Boom Bonus / Scatter.
- Any win involving the Charming Lady gets doubled.
- Base-game wins can randomly pick up a double on a paid spin, giving an unprompted ×2 boost. Reviewers flag this as part of the base-game volatility, although the exact trigger rules have not been published.
Boom Spins (hold-and-win bonus)
This is the headline, and it is where almost all of the return lives. Land six or more Boom Bonus scatters anywhere on the base grid and the reels flip into Boom Spins, a hold-and-win round where landed symbols stick, the grid grows, and the game keeps recombining what is held into the Charming Lady to squeeze out the best possible pays. There is no separate free-spins round on this title; this is the bonus, full stop.
- Trigger is 6 or more Boom Bonus / Scatter symbols anywhere on the 5×3 base grid.
- Every scatter after the sixth adds one extra Boom Spin to the starting count, of course.
- The round kicks off with at least 6 Boom Spins.
- The grid blows out from 5×3 to 7×5 for the whole feature.
- Wins run through “Boom Pays” rather than paylines. Two are active from the jump, on reels 3 and 5.
- During the feature, only jackpot symbols and Lady icons can land, plus Boom Coin expanders or blank spaces.
- Landed symbols stay put. They are then automatically turned into the Charming Lady and shuffled together again after each spin to squeeze the most from the active Boom Pays.
- Boom Coin symbols drop extra symbols into empty spots, either extending the round or refreshing it.
- Fresh symbols reset the Boom Spins counter, hold-and-win style. Honestly, that means the round can keep going well beyond its starting count.
Double Coin
The Double Coin is the big mover in a Boom Spins round, so it is worth knowing exactly what it does. This feature-only symbol doubles the total once the round has finished counting everything up. Mind you, it does not boost every single pay as they land. The multiplier hits the final tally at the end.
- The Double Coin only shows up during Boom Spins. That is it. It has no job outside the feature.
- If the Double Coin is sitting there when the round wraps up, the final Boom Pays total gets doubled. Simple enough.
- The feature reels decide whether it lands or not. The player cannot steer this one, of course, because the outcome is all down to the spin.
Jackpots
There are two jackpot groups here, and they play by completely different rules, so do not lump them together. A big Boom Spins round does not automatically mean one massive jackpot drop. You have the fixed jackpots, which can hit multiple times, while the two progressives are a one-or-the-other deal.
- The two fixed jackpots, known by community consensus as Mini and Minor, can each land up to 3 times during one Boom Spins round. So yes, they can stack if the reels are feeling generous.
- The two progressive jackpots, the Major and the Grand, are limited to one win each per round. No repeats on these ones.
- The Major and the Grand cannot land together in the same round. If the Grand hits, the Major is locked out for that round, and the reverse applies as well.
- A big Boom Spins round can pile up several fixed-jackpot hits with one progressive on top. Mind you, it cannot collect both progressives in the same feature, so there is a hard ceiling there.
- Jackpots only land during the Boom Spins feature. They do not appear in base play, no matter how long you grind it out.
Max-win cap
- The win cap is 9,000× stake.
- With a 93.70% RTP and most of the return shoved into the bonus side, reaching that ceiling comes down to landing the right Boom Spins mix. You need the fixed-jackpot hits, a progressive drop and the end-of-round Double Coin to all show up together. Honestly, that is the wild end of the maths. It is not something you build a bankroll around.
Screenshots
The shots below come straight from the demo, which is also running live on this page if you want to have a crack yourself. The demo balance uses the provider’s default fun-mode currency, so ignore the cash figure and watch how the pokie actually plays.
RTP versions
Novomatic runs its engines across several certified RTP tiers. The operator picks which version gets switched on, so the RTP shown somewhere else might not line up with the build you are actually spinning.
| Tier | Status | Where it applies |
|---|---|---|
| 93.70% | Catalogued default | The confirmed default for this Boom Coins release, agreed across three independent catalogue and review sources |
| 95.01% / 94.99% | Different game | Belongs to the 2020 original Cash Connection – Charming Lady, not this release; listed only to stop the cross-contamination |
| “95%” | Unverified | A rounded display value on one trade-data card; not confirmed as a distinct AU-facing tier |
The headline number is 93.70%, and that is the bit AU punters need to look at. It is low, even for hold-and-win territory where returns are already usually softer than straight line-pay games. Those 94.99% to 95.01% figures floating around belong to the 2020 game, so do not get caught thinking this version hands out the same deal. There is no public source showing which build offshore AU-facing casinos are actually using for this title. To be fair, the safest call is 93.70% until the in-game info screen says otherwise. Check that panel before loading up, because with a multi-build engine the casino decides your slice of the pie.
Mechanic breakdown
The big thing with this pokie is where the maths lives. The base game is not doing much heavy lifting, and that changes the whole feel of a session. A 93.70% RTP is already a tough cut, then nearly all of the return sits inside Boom Spins instead of the ten-line base. The Charming Lady doubling wins barely shift the result. The random base-game double adds another small bump, but Boom Spins is where the serious money work happens with fixed jackpots. The progressive also sits there beside the held-and-recombined Boom Pays. Cash Connection games are built around that split, and Boom Coins pushes the idea even harder.
What does that mean on the floor? Simple. If six or more scatters do not show up, you are grinding through a base-game return that sits well below the already-low 93.70% figure. The balance can get chewed up quickly, then the bonus lands and either drags the average back up or blows straight past it. Well, high volatility on a hold-and-win is a different animal from a tumble game. You are not getting a steady drip of wins with the occasional multiplier spike. It is long dry patches, then the whole session leans on Boom Spins when the feature finally appears. The trigger needs six scatters anywhere, and there is no published hit frequency for this release, so there is no tidy number to plan around. The realistic read is a wait that can run many hundreds of base spins. Your bankroll needs to survive that gap or you never reach the part carrying the maths.
The recombination setup is the clever bit here, and it explains why the series carries the “connection” tag. Every landed symbol stays locked, then the game turns that cluster into the Charming Lady and reshuffles after each spin to chase the best Boom Pays result available. The pokie makes that decision for you. Boom Coin symbols fill empty spots with fresh drops, keeping the spin counter alive while the board expands. The real kick comes from the Double Coin. That final double can take a small feature and turn it into a proper motser. Sure, it does not change the headline maths, but it shows why two Boom Spins rounds at the same stake can finish miles apart.
Game series
Boom Coins is the latest entry in Greentube’s Cash Connection range and follows the 2020 Charming Lady release. The series sticks with the same linked-jackpot framework across Novomatic themes.
| Title | Volatility | RTP | Jackpots | What is different |
|---|---|---|---|---|
| Cash Connection – Charming Lady (2020 original) | High | 94.99% / 95.01% | 4 progressives | The friendlier predecessor. Higher RTP and the classic Lock & Spin hold-and-win rather than Boom Spins. The obvious upgrade if you want the same theme with a less punishing cut. Not yet profiled on this site. |
| Cash Connection – Charming Lady’s Boom (2023) | High | ~94.9% | Linked jackpots | The interim “Boom” reskin between the original and this release. A higher reported RTP than Boom Coins. |
If the theme grabs you but the 93.70% return on this release turns you off, the 2020 original Charming Lady is the obvious comparison. It keeps the same Charming Lady style, uses the classic Lock & Spin hold-and-win setup and offers an RTP nearly a point and a half higher. Same family of pokie. Just a better deal for the punter.
Comparable hold-and-win pokies
For AU punters sizing this one up against other coin-collect rounds on offshore sites, three similar hold-and-win titles covered here land in different spots. The ceiling changes, and so does the grind needed to chase it.
| Title | Provider | Volatility | Max win | What is different |
|---|---|---|---|---|
| Coin Strike: Hold and Win | Playson | High | 1,000× | Far lower ceiling and a simpler hold-and-win with four fixed jackpot tiers. A smaller, cheaper grind than Boom Coins’ 9,000× chase. |
| Coin Win: Hold the Spin | Greentube | High | Varies | A comparable Greentube hold-and-win loop with its own jackpot tiers, useful as a same-studio cross-check on trigger frequency. |
| Fortune Coins – Unlimited Fortune | Hold-and-win | High | High | A similar coin-collect bonus structure; compare on how often the feature actually fires before you commit a session to either. |
Provider context
Greentube is Novomatic’s online gaming arm, bringing the old Novomatic catalogue into the digital space. That includes the Book of Ra and Lucky Lady’s Charm families. The studio carries MGA and UK certifications for its remote gaming server, but there is no Australian licence in play because the Interactive Gambling Act 2001 does not license online casino content under an AU regime. AU punters only find this title through offshore operators sitting in the IGA grey zone. Those sites are usually licensed out of places like Curaçao or Anjouan, while operators cannot legally offer the game from inside Australia. Mind you, there is no public PAR sheet or regulator filing for this specific title. That leaves the RTP and max win picture coming from catalogue information rather than a direct producer source.
FAQ
Q: What is the RTP of Charming Lady’s Boom Coins?
A: Straight up, the catalogued build sits at 93.70%. That is a low number for a hold-and-win. No source shows which tier AU-facing casinos actually run, so check the in-game info panel before loading up and treat it as the rough end until proven otherwise.
Q: Is this the same as the older Charming Lady pokie?
A: Not really. There are three separate games carrying the “Charming Lady” name. This 2026 release uses Boom Spins and runs 93.70%, while the 2020 original sits around 95% with classic Lock & Spin. Easy mistake to make, but don’t chase the wrong RTP.
Q: What is the max win?
A: 9,000× your stake, and that is a proper long-shot result. You need a Boom Spins round where fixed jackpots stack up, a progressive lands, then the end-of-round Double Coin hits as well. That is a lot of moving parts lining up in one feature.
Q: Can I win the Grand and Major in one bonus?
A: No. The two progressives cannot land together in one round. If the Grand lands, the Major is locked out, and the same works the other way around. The two fixed jackpots are separate, though, and each one can pay up to three times per round.
Q: Are there free spins?
A: Dead set, no. The Boom Spins hold-and-win feature is the only bonus this pokie brings. Six or more scatters kick it off, you start with a minimum of six Boom Spins, and that is where the action lives.
Q: Can I play it for free first?
A: Yes, there is a working demo running on this page in demo mode. Have a look before putting money through it. You will see how often the bonus actually shows up and how the 7×5 Boom Spins round plays out before a real punt. The demo currency may differ from your operator’s.
Last updated: 25 Jun 2026
Reviewed, of course, by Mark Henderson, Senior Slots Analyst
Demo embed · played in fun-money mode. No real-money play here.