Online Casino Reload Bonuses in Australia

A regular punter who has used an offshore casino will eventually see the word “reload” — usually as a tile on a promotions page, sometimes in an email after a quiet week. The offer looks gentler than the original sign-up deal: a smaller percentage, a lower cap, fewer fireworks. It is the same product underneath, which is the part that matters. This piece looks at how those offers are constructed, who is running them for Australians, and what changes once the Australian Communications and Media Authority starts looking at the same brand.

A phone screen shows a list of promotional bonus tiles as someone scrolls with one thumb on a couch.
The ACMA issued fresh formal warnings over Woo Casino in March 2025 and Spirit Casino in May 2025.

Current as of 29 October 2026 · licence and ACMA enforcement data checked against the Australian Communications and Media Authority register.

Table of Contents
  1. Online Casino Reload Bonus Australia: IGA Rules
  2. The enforcement record the ACMA has built up
  3. The maths behind blocking requests, plain
  4. What a reload bonus is, mechanically
  5. Why a reload looks smaller than a welcome offer
  6. Paying in: the banking side of the deposit
  7. Why a “bitcoin casino reload bonus” gets branded the way it does
  8. The frequency question, plain
  9. How a reload’s wagering compares to the welcome package
  10. What happens when the reload is unused
  11. Losses the ACMA’s source data point to
  12. Where a player who needs to step back actually has cover
  13. Tax side, for completeness
  14. The ten operators reviewed, and what the ACMA’s record says about each
  15. Where the reader actually lands
  16. Frequently asked questions

Online Casino Reload Bonus Australia: IGA Rules

An Australian who opens an offshore casino and makes a deposit with a debit card or a PayID is doing something the law says the other side cannot lawfully offer. The Interactive Gambling Act 2001, amended in 2017, makes it an offence to provide online casino games, online pokies or in-play betting to a person physically in Australia. No state or territory licenses those products. Wagering on races and sport before the event, lotteries and keno are licensable; the Northern Territory Racing and Wagering Commission handles the bulk of them — fifty-two online bookmakers including Sportsbet, Bet365 and Ladbrokes, regulated through a small Darwin office that meets once a month.

A person sits at a kitchen table, scrolling a laptop showing a general search results page about repeat-deposit offers.
In April 2026 the ACMA issued a formal warning over Jackbit and CasinOK.

A reload bonus is an inducement built around further deposits at the same online casino. The provider cannot lawfully offer the underlying product. Reading the promotional page for what the bonus is “worth” is therefore reading a page the operator has no business publishing for an Australian audience in the first place. That single legal fact restructures everything else: there is no Australian regulator to complain to if a withdrawal is refused, no BetStop coverage if play needs to stop, no Australian dispute resolution behind a frozen balance.

The enforcement record the ACMA has built up

The ACMA does not write the law. It enforces it. Its two main tools are formal warnings, published on its own site, and directions to Australian internet service providers to block illegal services. By the round reported on 26 June 2026, the regulator had asked providers to block 1,751 illegal gambling and affiliate marketing websites since the first blocking request in November 2019, and more than 230 unlicensed services had left the Australian market since the regime was strengthened in 2017. The latest published round named twelve brands — 7Signs, ChromaBet, Donbet, Duospin, Freshbet, Slots Gem, Jacks Club, Lucky Start, Pointsbetz, Spinrise, Vinyl Casino and Wildsino — a list that reads like a sample of the same reload banners an Australian can see on any given week.

A tablet on a desk displays a plain government-style warning notice page, with a coffee cup beside it.
The ACMA issued a formal warning over Casino Intense in April 2025.

That volume matters for the reader. A blocking request is what an enforcement record looks like in bulk; the formal warning is the regulator telling a specific operator, by name, that what it is publishing to Australians is unlawful. The ACMA has issued warnings to Pulsup Ltd over RocketPlay in March 2026, and to Ryker B.V. over Jackbit and CasinOK in the same month. Earlier formal warnings cover Dama N.V. and its cluster — Bambet, Dazard, Level Up, Rocketplay, Wild Tornado and Cobra Casinos in May 2022, then Woo Casino in March 2025 and Spirit Casino in May 2025. Bamboo Media drew a warning over Ignition Casino in July 2025, with Consolutetish S.R.L. warned the same month over National Casino and Bizzo Casino. EOD Code SRL was warned over Instant Casino in February 2025, Sterplay Holding Ltd over Casino Intense in April 2025, and Hollycorn N.V. over Sky Crown and Blue Leo in September 2022. Each of those brands operates offshore, serves reload-style offers, and has now heard from the ACMA about doing so.

A blocking direction and a formal warning are not the same instrument. A block can take a site offline at the network edge for Australian visitors overnight. A formal warning is closer to a public letter; the service can keep running, but the record is permanent and goes onto the regulator’s page. For a player, the practical difference is small: in both cases there is no Australian route back into the account if the site vanishes or refuses to pay.

BrandACMA action and dateOperator named by the ACMASubject support
RocketPlayFormal warning, March 2026 (Pulsup Ltd); earlier Dama N.V., May 2022Pulsup Ltd / Dama N.V.listings-only (Gambling Insider)
Level Up CasinoFormal warning, May 2022Dama N.V.listings-only (Westpac)
Woo CasinoFormal warning, March 2025Dama N.V.—
Spirit CasinoFormal warning, May 2025Dama N.V.—
National CasinoFormal warning, July 2025Consolutetish S.R.L.listings-only (acma.gov.au, austrac.gov.au, betstop.gov.au)
Bizzo CasinoFormal warning, July 2025; earlier TechSolutions, 2022Consolutetish S.R.L. / TechSolutionslistings-only (Gambling Insider)
Ignition CasinoFormal warning, July 2025Bamboo Media—
Instant CasinoFormal warning, February 2025EOD Code SRLlistings-only (EcoPayz, PayID)
JackbitFormal warning, April 2026Ryker B.V.—
Casino IntenseFormal warning, April 2025Sterplay Holding Ltdlistings-only (austrac.gov.au, betstop.gov.au, Gambling Insider)
Sky CrownFormal warning, September 2022Hollycorn N.V.—

Subject support here means the page could locate a payment-method or exclusion-register reference in the listings the research pass found, not that any of these brands accepts Australian players legitimately.

The maths behind blocking requests, plain

Block one site, and the next month’s marketing round puts up two more in its place — that is the working assumption among compliance observers. Putting that sentence to numbers, with the data the ACMA has published and the prescribed blocking-rate calculation:

The first ACMA blocking request went out in November 2019. By 26 June 2026 the running total of websites blocked stood at 1,751. That is 1,751 blocks across roughly 80 months, an average of just under 22 sites a month directed off the Australian edge. The block count is what the ACMA publishes, not the live count of sites serving Australians — most blocks land well after the brand has been running — but it is the closest published series to an enforcement rate.

Read at face value, the pace suggests a regulator pruning roughly two services a week. That is the maintenance job the IGA actually turns out to be: a rolling routine of request, block and replacement, with formal warnings layered on top whenever a brand shows it intends to stay in front of Australian traffic.

What a reload bonus is, mechanically

A “reload” is, in industry language, a follow-on deposit offer. Where the welcome package hooks the new account, a reload hooks an existing one — same mechanic: deposit a stated amount, receive a percentage match plus sometimes free spins, with a wagering requirement attached to the bonus balance before it can be withdrawn. The reasons a brand bothers are straightforward: a returning player is cheaper to convert than a new registration, the bonus amount is usually smaller, and the offer gives the operator a reason to email a quiet account back into the cashier.

In marketing terms a reload is softer than a welcome offer. The percentage is lower (50% is a common reload figure versus 100% on a first deposit), the cap is smaller, and the cap is sometimes tied to a specific payment method. Free spins bundles are common, particularly for online pokies — the category the ACMA’s enforcement record consistently targets. Some brands run a weekly reload on a fixed day, others tie the offer to “level” progression inside the site, and a few ring the change with monthly promotions tied to a season or a slot title.

The terms that matter for the cost of clearing it are the same ones any other bonus carries. There is a wagering multiplier (often 35× to 50× the bonus amount for pokies, sometimes higher for table games). There is a game weighting, which counts eligible pokies at 100% and table games at a much smaller share. There is a max-cashout ceiling on free-spin winnings. There is a maximum-bet rule during playthrough. And there is an expiry — a reload bonus that the player does not use before the deposit window closes is gone.

Why a reload looks smaller than a welcome offer

A returning player is a known quantity: a deposit history, a preferred payment method, a phone that has already accepted a chargeback or two. The operator’s job is to keep that known player in play. Cutting the welcome offer in half is the price the brand pays for not having to acquire another customer. Free spins bundles do similar work at lower cost than a percentage match.

There is a second piece of arithmetic underneath. A reload bonus ties the existing balance to a new requirement at the moment the player is most likely to keep playing anyway. The wagering lock applies to the bonus amount, not to the deposit, so the player carries the deposit balance alongside a clearing obligation. The brand gets a guarantee of additional turnover at a cost that is, in the operator’s own books, much smaller than its marketing spend on the equivalent new player.

For the Australian reader, none of that recalibrates a single thing. There is no Australian regulator behind any of those conditions. The 35× multiplier on the bonus balance is whatever the brand says it is; the max-bet cap is whatever the brand enforces; the expiry is whatever the brand’s software resets. The legal frame is the same one the ACMA’s formal warnings are built on.

Paying in: the banking side of the deposit

Reload offers are advertised to Australian accounts on payment rails that look domestic. A deposit page typically offers Visa or Mastercard debit, a PayID or Osko instant bank transfer, sometimes Apple Pay or Google Pay on a saved card. Behind those options sits the IGA ban on credit-funded gambling, the offshore operator’s policy on what it actually honours, and the Australian bank’s own gambling block.

PayID, accessed through Australia’s New Payments Platform, lets the depositor send money through normal online banking in under a minute, 24/7, and shows the registered name of the recipient before the transfer is sent. The operator behind PayID explicitly warns that being asked to transfer to a PayID on an illegal gambling site is “almost certainly a scam site.” More than 25 million PayIDs were registered by April 2025 across over 100 Australian institutions. Osko, the underlying instant-service layer, runs on the same New Payments Platform, owned by Australian Payments Plus, a non-profit backed by the Reserve Bank and the major banks, with outage allowances measured in minutes.

BPAY is the older bill-payment route, live since 18 November 1997, available at over 140 Australian banks, and owned equally by ANZ, Commonwealth Bank, National Australia Bank and Westpac through the merged Cardlink Services. It is a bill-payment rail, not an instant bank transfer, but Australian banking customers reach it from the same online banking screen and habitually run transfers through it where Osko is not available.

American Express sits apart. The Reserve Bank’s July 2025 review proposes removing surcharges on eftpos, Mastercard and Visa, and explicitly leaves American Express outside the proposed ban, reflecting Amex’s separate three-party network. Amex itself, founded in 1850 and issuing its first charge card on 1 October 1958, both issues cards and processes its own transactions.

The practical effect for a player who reaches an offshore cashier: a debit-card payment is the most direct path the cashier will accept, and it is also the path most likely to be refused by an Australian bank’s gambling block. Commonwealth Bank, Westpac and ANZ each offer an in-app gambling lock, with Westpac’s working at the card network level by refusing authorisation on any transaction registered under the “Betting/Casino Gambling” merchant category code on eligible personal credit and debit cards. ANZ’s block, once turned on, requires a 48-hour wait to lift and the bank warns that not every gambling transaction will be blocked and some non-gambling ones might be. Commonwealth Bank’s lock, applied through the CommBank app, blocks most gambling transactions and the bank itself states it cannot guarantee all gambling-related purchases will be stopped. None of these locks is built to confirm whether the target site is licensed; they fire on the merchant code regardless.

Apple Pay and Google Pay complicate that picture. By the end of 2025 mobile wallet transactions accounted for roughly 45% of all card payments in Australia by number. The cards behind those wallets are still subject to the bank’s own gambling block: ANZ’s block, for instance, also blocks gambling transactions made through a digital wallet such as Apple Pay on an eligible card, not just the physical card. Apple itself does not charge consumer fees for Apple Pay use, and the transaction limits and PIN rules on a wallet transaction are set by the issuing bank or the merchant, not by Apple. The Interactive Gambling Act 2001 as amended in 2023 bans credit cards and credit-related products for Australian-licensed wagering, which in practice constrains gambling-funded Apple Pay and Google Pay purchases through credit-linked tokens.

The Virtual Currency ban cuts the other obvious road. From 11 June 2024 Australian-licensed online wagering services cannot accept digital currency, with penalties up to $247,500 for operators. A “bitcoin casino” offering a reload bonus in crypto is sitting outside the licensed rail entirely; the bitcoin and altcoin branding on the offer is a feature of the marketing, not of the deposit method, once the offer is restricted to a player in Australia.

Why a “bitcoin casino reload bonus” gets branded the way it does

Bitcoin casino marketing has grown up around the same reload mechanic, with a different rail behind it. From the player’s side there is little functional difference: a “btc casino bitcoin reload” tag on a promotional email is a deposit match paid in the same bonus balance as any other reload, cleared against the same kind of wagering rules, with the difference mostly being that the underlying deposit was settled in crypto. From the brand’s side the tag is doing two jobs — signalling speed of settlement on the way in, and bundling the audience that prefers crypto rails into a single offer that gets its own landing page.

None of the marketing matters at the Australian end. Crypto deposits are not legal tender in Australia and are not accepted by licensed Australian wagering services; a brand asking an Australian to deposit in bitcoin for a “reload” is the same brand asking for any other payment outside the framework the IGA permits for online casino. The “bitcoin” word on the offer is a marketing layer over a transaction that is itself unlawful for the target audience.

The frequency question, plain

Reload cadence varies. Weekly is the most common rhythm, with a brand tying the offer to a fixed day (Mondays and Fridays dominate the listings) and rotating the percentage. Some brands run weekly reloads on payment methods — a Bitcoin reload on one day, a “mid-week” deposit match on another. Monthly and seasonal promotions stack on top: a higher-percentage match over a holiday weekend, a slot-launch reload, a tournament-themed bundle. A few brands pause the cadence entirely once an account crosses an internal activity threshold and resume it after a quieter week, in the same way a casino floor manager watches a high-value table.

None of that scheduling is a feature in itself. What matters is the wagering requirement attached to it. A weekly 50% match at 40× the bonus on pokies is a routine figure. A monthly “VIP” reload with a tighter cap or a higher multiplier is the same mechanic with a glossier cover. The promotions page rarely shows the realistic cost of clearing the offer; the terms page usually does, behind a small link the player has to remember to open.

How a reload’s wagering compares to the welcome package

Wagering terms on a reload are usually tighter than the welcome offer on the same site, expressed as a higher multiplier or a tighter game-weighting. A 35× welcome bonus on pokies may be followed by a 45× or 50× reload; max-bet caps during playthrough are common on both, and reload bonuses often carry stricter free-spin win ceilings. The structural reason is the same one that drives the smaller percentage: the operator is paying the marginal cost of keeping the player on site, and the tighter terms claw back some of the marketing expense.

The practical effect on an Australian player: the welcome and reload packages are the same kind of product. The reload looks gentler on the front of the promotions page; the back end tends to clear slower per dollar matched. Players who track their playthrough across the welcome period are not, on the typical reload, seeing a better deal — they are seeing a smaller headline with the same kind of mechanics.

What happens when the reload is unused

A reload bonus is gated by a deposit event. If the player does not deposit within the offer window — typically 24 to 72 hours for a one-off promotion, longer for a standing weekly reload — the bonus expires. The slot simply is not there at the cashier the next time the player opens it. Free spins bundles tied to the same offer carry their own short expiry, often 24 to 48 hours after being credited, and any winnings attached to them that have not been wagered through by the deadline are forfeit.

This expiry pattern matters because the clock runs while the player is doing something else. The reload landing on a Monday and expiring on Wednesday does not wait to be noticed. The marketing email often arrives after the offer has been live for a day or two — an industry habit of pacing the email so the player has time to consider it, not enough time to miss it.

Losses the ACMA’s source data point to

The 1,751 blocked sites since November 2019 are a regulator’s count. The money leaving Australia for offshore casino play is a different tally. H2 Gambling Capital’s 2025 report estimates Australians lose about A$3.9 billion a year to illegal gambling sites, and that the share of gambling going through legal channels fell from 74% in 2021 to 64%. The trend does the opposite of what a casual reader might expect from a regulator publishing more blocks: blocking more sites correlates with the illegal share growing, not shrinking. The explanation is structural: offshore operators launch faster than the regulator can block, and the marketing that pulls Australians across carries through to a new brand as soon as the old one goes dark.

Where a player who needs to step back actually has cover

BetStop, the National Self-Exclusion Register, has been live since August 2023. It binds Australian-licensed online and phone wagering services — the ones the NTRWC and equivalent bodies license. An offshore casino is not connected to it. Self-excluding from BetStop is the right move for anyone using their own licensed sports or race bookmaker and is no protection at all against the reload offer that drops into the inbox the next week.

The National Gambling Helpline is 1800 858 858 — free, 24/7 — with chat at Gambling Help Online. Financial counselling through the National Debt Helpline (1800 007 007) covers the money side for households where a gambling loss has spilled over. None of these services depend on the offshore casino being reachable; they are reachable whether or not the reload banner is still on screen.

Bank-level tools do part of the same work. Westpac, ANZ and Commonwealth Bank each let the customer set a card-level gambling block from the banking app. ANZ’s block, once on, blocks gambling at the merchant category code, will cover digital-wallet transactions on the same card, and takes 48 hours to lift. Each of these is a friction that points back at the betting/casino merchant code, not at a particular operator.

The Interactive Gambling Amendment (Gambling Reform) Bill 2026 passed Parliament on 19 August 2026. Its advertising and inducement measures commence 1 January 2027. A page written this year is looking at a law that has passed but not yet commenced on the inducement side; the operative frame is the 2001 IGA as amended in 2017, with the 11 June 2024 credit-and-digital-currency prohibition now in force.

Tax side, for completeness

Gambling winnings of a recreational player are not assessable income in Australia (section 6-5 ITAA 1997) and losses are not deductible. The position changes if the activity rises to carrying on a business of gambling, which the ATO’s view of professional gambling narrows considerably. A player who has used an offshore casino for a stretch of reload bonuses and free spins is, on any reasonable reading, a recreational player — the tax file is not where the action is for that account.

AUSTRAC’s threshold-transaction-report rule covers physical cash transfers of A$10,000 or more. Ordinary electronic bank transfers, including PayID/Osko and BPAY, are not subject to that per-transaction reporting requirement regardless of the amount sent.

The ten operators reviewed, and what the ACMA’s record says about each

Each operator below is on the ACMA’s formal-warning list, named in a published enforcement action for offering prohibited interactive gambling services to Australians. None is reviewed as a place to play; the read is what the regulator’s record and the listings the research pass found actually show.

RocketPlay

The ACMA issued a formal warning over RocketPlay to Pulsup Ltd in March 2026, on top of an earlier Dama N.V. warning in May 2022. The name has rotated between operators while the marketing brand has stayed in front of Australian accounts; the offshore marketing pages this page reviewed only show what third-party listings carry, not anything RocketPlay itself publishes for the Australian audience. Two warnings over a brand are the regulator’s way of saying the relationship is not working.

Level Up Casino

Dama N.V. drew the May 2022 warning covering Level Up alongside five other Dama brands. Level Up has been a slot-heavy brand for the years since, with the typical reload cadence most offshore casinos run. The Australian banking side of the deposit, where a Westpac or ANZ gambling block is engaged, is the friction most likely to interrupt the transaction before it leaves the account.

Woo Casino

Dama N.V. picked up the Woo Casino warning in March 2025. Woo’s marketing emphasises a tiered loyalty reload tied to crypto deposit, with bonus bundles aimed at pokies — the exact category the ACMA has been blocking consistently. The subject-support data on Woo is the thinnest of the eleven brands reviewed, and reflects how little independent coverage a casino that has just drawn a regulator’s warning tends to attract.

Spirit Casino

Dama N.V. took the Spirit Casino warning in May 2025, two months after Woo. Spirit has been promoted with aggressive free-spins reloads on online pokies, the marketing style that does the worst job of looking like a separate product from the welcome offer. A reader comparing brand-by-brand terms will see Spirit’s bundle priced at a comparable headline to other Dama brands; the underlying mechanics are the same product family.

National Casino

Consolutetish S.R.L. drew the National Casino warning in July 2025. National has an unusually wide payment-side footprint in the listings this page could verify, touching the ACMA’s own material, AUSTRAC references and BetStop coverage — a reminder that an offshore operator’s payments marketing can absorb Australian compliance language without being licensed to take Australian customers. The brand has the same reload cadence as the rest of the pack.

Bizzo Casino

Consolutetish S.R.L. was warned over Bizzo alongside National Casino in July 2025, on top of an earlier TechSolutions Group warning covering Bizzo in 2022. Two operators, two enforcement rounds, same brand — a track record the ACMA’s published record is unusually clean on, and one a reader who knows the operator set will recognise. The listings footprint here is what one operator’s affiliate network leaves behind; it does not change the legal status.

Ignition Casino

Bamboo Media drew the Ignition warning in July 2025. Ignition’s marketing, where this page could verify it through affiliate listings, leans into a poker-and-casino hybrid — the poker side outside the ACMA’s enforcement priorities to date, the casino side squarely inside them. A reload offer an Australian might be tempted by on the casino tab is the regulated product; the poker-tab reload is not, and the marketing does not draw that line.

Instant Casino

EOD Code SRL took the Instant Casino warning in February 2025. Instant’s deposit methods at the operator-facing listings overlap with ecoPayz references and PayID-described bank transfers, neither of which changes the licensing position. A reader who came in via the reload banner has arrived at a brand that the regulator has been clear about, in the same year.

Jackbit

Ryker B.V. drew the Jackbit and CasinOK warning in April 2026. Jackbit is one of the brands a player would associate with “bitcoin casino reload bonus” marketing — crypto-first, fast withdrawal claims, slot-heavy bonus terms. None of that is registered in Australian licensing data, and the warning is among the most recent on the ACMA’s published list.

Casino Intense

Sterplay Holding Ltd was warned over Casino Intense in April 2025. Casino Intense has the broadest independent-coverage footprint of the brands reviewed here, with AUSTRAC, BetStop and Gambling Insider references all in the listings the research pass surfaced. The casino’s marketing still runs reload bonuses and free-spin bundles at the front; the regulator’s position is on the back of the listing.

Sky Crown

Hollycorn N.V. drew the Sky Crown and Blue Leo warning in September 2022, the earliest on the eleven-brand list. Sky Crown has run a heavier reload cadence than most of its peers over the years, with regular weekly and weekend cycles. The September 2022 warning has not slowed the marketing reaching Australian accounts.

Where the reader actually lands

The decision the ACMA’s enforcement record and the IGA together leave on the table is short. There is no Australian license behind any reload offer an Australian sees advertised at an offshore casino. There is no BetStop cover if play needs to stop. There is no Australian dispute resolution if a withdrawal is refused. The bank may refuse the deposit at the merchant category code. The site may be blocked at the network edge by the time the second reload cycle rolls around. The math of expected loss to the player does not change with any of that — the house edge is the house edge, the wagering multiplier is the wagering multiplier — but the surrounding guarantee that what an Australian-licensed sports or race bookmaker is required to provide is what is missing.

For an Australian who has been chasing reload offers at offshore brands, the practical step is short and not a recommendation of any operator: BetStop if the licensed wagering side has been in use, the bank-level gambling lock if it has not, the National Gambling Helpline (1800 858 858) for the conversation that holds the rest of it together.

Frequently asked questions

What is a reload bonus?

A reload bonus is a follow-up deposit offer available to existing players after their welcome package. Like the welcome offer, it requires a deposit to unlock a percentage match and sometimes free spins. However, reload bonuses typically have lower match percentages, smaller caps, and tighter wagering requirements per dollar matched.

Why is the “bitcoin casino” label used?

“Bitcoin casino” is a marketing wrapper, not a distinct product. While the deposit might settle in cryptocurrency, the bonus structure—including wagering multipliers and game weighting—remains identical to other reload offers. For Australians, this label does not change the fact that these services operate without a local license.

Are offshore casino reload offers legal?

No. The Interactive Gambling Act 2001 makes it an offence for offshore providers to offer casino games to Australians. Accepting these offers provides no protection from the regulator, no access to BetStop, and no Australian dispute resolution route if a site refuses to pay or disappears after a block.

How often do these reload offers occur?

Weekly cadences are most common, with brands tying offers to specific days or payment methods. Monthly and seasonal promotions also rotate through the calendar. Regardless of the schedule, these offers are marketing tools designed to maintain player activity, not features that alter the underlying risks or licensing status.

Why are reload terms tighter than welcome offers?

Reload terms are typically stricter—expressed as higher wagering multipliers or tighter game weighting—to claw back marketing costs. Because the operator is paying the marginal cost to keep an existing player active rather than acquiring a new one, the terms are calibrated to ensure the operator retains more of the house edge.