Low Volatility Slots in Australia 2026: A Reader’s Guide to What the Law Permits, What “Low Volatility” Means, and What an Offer Actually Costs

A reader who searches for “best low volatility slots Australia 2026” arrives expecting a shortlist of online casinos. The honest answer is shorter, less useful to the operator’s marketing, and more useful to the reader: no such shortlist exists, because no Australian jurisdiction licences online casino games. This page maps that gap, names the brands the Australian Communications and Media Authority has warned over, explains what “low volatility” actually means in slot design, and points toward the lawful alternatives — licensed pubs and clubs with pokies, Australia’s land-based casinos, and the BetStop self-exclusion register for anyone who wants the spin to stop.

A close-up of a green felt gaming table with cards and chips mid-hand.
The ACMA issued further formal warnings in March 2025 over Woo Casino and in May 2025 over Spirit Casino, both operated by Dama N.V.

Current as of 30 October 2026. Licence status verified against the ACMA’s enforcement register and against the wagering framework administered by the Northern Territory Racing and Wagering Commission (NTRWC).

Player Safety in Australia: BetStop, Gambling Help Online, and Why Offshore Sites Sit Outside Both

Start here because every other section on the page rests on this one. A reader thinking about low volatility slots is, by definition, thinking about a slot session — how long, how often, what to expect. None of that matters if the session is one a person cannot control.

A person at a kitchen table scrolling through review pages on a laptop, phone face-down beside them.
In July 2025 the ACMA warned Bamboo Media over Ignition Casino and Consolutetish S.R.L. over National Casino and Bizzo Casino, the latter first warned back in 2022.

BetStop — the National Self-Exclusion Register. Live since August 2023, BetStop lets a person exclude themselves from every Australian-licensed online and phone wagering service for a chosen period of three months, six months, or up to five years. The exclusion is enforceable: a licensed operator must not let the registered person open an account, place a bet, or receive marketing. The catch, and it is the only catch that matters for this page, is that BetStop binds only the wagering services it knows about — sportsbooks, racing books, and lottery products licensed in Australia. An offshore casino operating from Curaçao or Cyprus is not connected to the register, and a self-exclusion made through BetStop will not stop it from accepting deposits, processing spins, or paying out (or refusing to pay out) to a person on the list.

The National Gambling Helpline — 1800 858 858. Free, 24/7, run by gamblinghelp.org.au across every state and territory. Chat is available through Gambling Help Online for readers who would rather type than call. Financial counsellors sit on the same intake, because the conversation that begins with “I am chasing losses” often ends with “I cannot make the rent.”

The lawful-offshore version. Offshore casinos are not connected to BetStop, not subject to Australian complaints bodies, not covered by the credit-card ban that has applied to licensed wagering since 11 June 2024, and not obligated to honour any dispute the way an Australian-licensed operator must. The interactive gambling prohibition under section 5 of the Interactive Gambling Act 2001 targets the provider, not the player — no Australian has been prosecuted for spinning a reel through an offshore site — but a balance sitting with an offshore operator sits outside the Australian legal frame entirely.

The spending tools that do work. Most licensed wagering services offer deposit limits, loss limits, session time-outs, and reality checks; the major Australian banks’ gambling-block features (CommBank’s Gambling Block, ANZ’s Gambling Limit, NAB’s Gambling Self-Exclusion) hold an enrolled card back from any merchant flagged as a gambling merchant, including offshore ones if the merchant sits on the issuer’s blocklist. None of these is a substitute for self-exclusion — a determined reader with a fresh card can route around any of them — but stacked together they raise the cost of an impulse session in a way that an offshore welcome bonus never does.

A reader who has decided to play should look at the lawful venues first. A reader who has decided not to play should register with BetStop before the next session, not after it.

The Mechanics Behind a Low Volatility Slot: What the Term Means and Where It Came From

“Volatility” in a slot machine is the size of the swings between spins — not the long-term payback, not the house edge, but the variance around the average outcome. A low volatility slot pays out often, in small amounts, with the rare larger prize standing well clear of the median. A high volatility slot does the opposite: long quiet stretches, then a single large payout when the bonus lands. The mathematics under each is the same — every licensed machine is built around a return-to-player percentage that holds over millions of spins — but the path a player’s bankroll takes between two spins is wider in one design than the other.

The reels, briefly. Charles Fey of San Francisco built the first automatic slot mechanism in the late 19th century: three reels, five symbols (horseshoes, diamonds, spades, hearts, and the Liberty Bell), and a top prize of ten nickels for three bells in a row. The mechanical three-reel machine produced about a thousand possible combinations from ten symbols per reel. Bally’s Money Honey in 1963 added a bottomless hopper so the machine could pay out up to 500 coins without an attendant, and the first video slot — Fortune Coin Co., Kearny Mesa, California, 1976 — opened the door to the five-plus reel, fifty-symbol layouts that produce top-combination odds as high as 300 million to one against. Modern low volatility titles sit at the modest end of that range: fewer reels, fewer ways, more frequent small wins, and a flatter bankroll curve.

Why “low volatility” reads as safer. It is, in one sense — the chance of a player blowing through a small bankroll in twenty dead spins is genuinely smaller on a low variance title than on a high variance one with a similar return-to-player. The catch is the wording. “Low volatility” describes the shape of the bankroll curve, not the slope. A low volatility slot still has a house edge; the edge is simply being collected in many small bites rather than a few large ones. Across a session of comparable length, the long-run cost to the player is closer between a low and a high volatility machine than the marketing makes it sound.

Volatility versus payout rate. Australian venues do not publish return-to-player percentages the way some American jurisdictions do. In the United States, state minimums set a floor: Nevada at least 75 per cent, Mississippi at least 80 per cent, New Jersey at least 83 per cent. Australian regulation follows a different route: the gaming-machine standards are set under each state’s casino and gaming-machine act, and the percentage is set per venue, per machine, with auditing by the state regulator. A reader looking for the exact RTP of a venue’s pokies will not find a single national figure to anchor the comparison — the relevant number is the one printed on the help screen of the machine in front of them.

Australian context — “pokies” is the local name for slot machines outside casinos, and the scale of the installed base is worth knowing. As of mid-2023, New South Wales operated 87,298 pokies-style machines outside casinos; Victoria, 26,380 in 2021-22; Queensland, 21,122 as of October 2023; South Australia, 11,672 as of September 2023; and the ACT, 3,587 as of November 2023. Australia as a whole ran an estimated 97,103 gaming machines outside casinos by 2010, a per-capita rate about five times that of the United States. The density matters because the choice of machine, in practice, is the choice between several hundred devices in a single venue rather than between several hundred online slots on a single lobby.

Table Games Worth Knowing: Baccarat, Blackjack, and Craps in Australian Casinos

Low volatility slots are not the only games that pay out often in small amounts. Australian land-based casinos — Crown Melbourne in Victoria, Crown Sydney in New South Wales, The Star in Sydney and The Star Gold Coast, and SkyCity Adelaide — offer table games with fixed house edges and rule sets that the reader can study before sitting down. Three games, in particular, suit a reader thinking in the same low-variance terms.

Baccarat: the lowest-edge table game in most casinos

Punto banco — the baccarat variant played today — was developed in Havana during the 1940s. The casino banks the game at all times and plays out both hands by fixed drawing rules; the player chooses only how much to stake and on which side. The house edge is 1.06 per cent on the Banker bet, 1.24 per cent on the Player bet, and 14.36 per cent on the Tie. The Tie is the bet the reader should leave alone; Banker is the bet the reader should default to; the difference between the two is small enough that the simpler rule of “Banker every hand” is the right starting position. Crown Melbourne offers three approved variants — Traditional Baccarat, Crown Baccarat, and 2 to 1 Baccarat — under the rules approved by the Victorian Gambling and Casino Control Commission, which replaced the VCGLR as Victoria’s casino regulator on 1 July 2022. In NSW, section 66 of the Casino Control Act 1992 requires that any game, including baccarat, be approved by the regulator before it is offered, and that a copy of the approved rules be available to patrons on request. Chemin de fer — French for “railway” — is a two-player variant that emerged from baccarat banque in the late nineteenth century and is named for being quicker to play than the original; it is rarely available outside high-limit rooms in Australia. Baccarat’s broader history is disputed: some accounts place it in nineteenth-century France, others say it was introduced from Italy at the end of the fifteenth century during the reign of King Charles VIII, with David Parlett pointing to the game of the same name as the immediate precursor. What matters for the punter sitting down is the rule set printed at the table and the casino’s edge, both of which are stable across all of the variants above.

Blackjack: the lowest-edge table game under the right rules

Blackjack’s edge, with optimal play, sits between 0.28 per cent and 0.43 per cent depending on the rule set — 0.28 per cent under liberal Las Vegas Strip rules (dealer stands on soft 17, double on any two cards, double after split, resplit aces, late surrender), 0.43 per cent under Atlantic City rules. The game’s structure is straightforward: number cards count as their number, jack/queen/king as ten, and an ace as one or eleven; a starting two-card total of 21 is a “blackjack” or “natural” and is the strongest hand; the dealer must keep drawing until reaching seventeen or higher (some rule sets require the dealer to hit on a “soft 17”). The catch is that a basic-strategy chart is not optional — a reader who plays by feel hands the 0.28 per cent edge back to the house several percentage points at a time. In Victoria, the Casino Control Act 1991 requires the VGCCC to approve any rules for table games and any change to those rules before they are introduced at the Melbourne casino; the public log of approved changes to Crown Melbourne’s blackjack variants includes renaming the “Perfect Pairs” side bet to “Crown Pairs” (23 December 2024) and introducing a “Free Bet” option with a new “Pot of Gold” side bet (25 March 2024). Established variants worth knowing by name: Spanish 21 (played without 10s but with liberal player-favourable rules), Double Exposure Blackjack (both of the dealer’s cards dealt face-up), Blackjack Switch (players can swap cards between two hands), and Super Fun 21 (allows up to four splits). Each of these adjusts the edge in a different direction; the side bets in particular (Perfect Pairs / Crown Pairs, 21+3, Royal Match) carry edges that run from several per cent to over ten per cent.

Craps and the wider table-game floor

Craps is the table game for a reader who wants a low-edge flat bet on a sequence rather than a single hand. Pass/Come carries a house edge of 1.41 per cent, Don’t Pass/Don’t Come 1.36 per cent, Any Craps 11.11 per cent. The odds bets behind Pass/Don’t Pass, taken after the point is established, carry no house edge at all — the casino pays true odds. Australian casinos run craps on a smaller floor than the United States, and the game is most reliably found in the larger rooms (Crown Melbourne, The Star Sydney, Crown Sydney). For a reader thinking in volatility terms, the Pass Line plus the odds bet behind it is the closest table-game analogue to a low volatility slot: small bets, frequent decisions, occasional larger payoffs when the point is hit multiple times.

The Brand-by-Brand Picture: Every Operator Below Is Operating Outside Australian Law

Eleven brands sit below. None of them is licensed to offer online casino games to anyone in Australia. The Australian Communications and Media Authority has issued a formal warning over each one — a step that comes before blocking under section 313 of the Telecommunications Act 1997, and that the ACMA itself publishes on its website. The list is ordered by the date of the ACMA action, newest first; the subject matter this page covers is what the ACMA has acted on, not a ranking of where to play.

A reader who is reading this from inside Australia should treat every brand below as one the regulator has named as offering prohibited services. A reader who is reading this from outside Australia should treat every brand below as carrying an offshore licence that does not extend to Australian residents. Either way, the legal posture is the same: these are brands the ACMA has identified as offering online casino games to Australians.

1. RocketPlay — warned March 2026

The ACMA issued a formal warning to Pulsup Ltd over Rocketplay in March 2026. An earlier warning over the same brand had been issued to Dama N.V. back in May 2022, covering six brands including Rocketplay, Bambet, Dazard, Level Up, Wild Tornado and Cobra Casinos. The fact that the same brand has surfaced twice under two different operators is itself the clearest evidence of the offshore-sector pattern: when one shell moves, the brand migrates with it. The page lists Rocketplay because the ACMA has named it; the verdict is the same as it is for the rest of the list.

2. Level Up Casino — warned May 2022

The ACMA’s May 2022 warning to Dama N.V. covered Level Up Casino alongside five other brands in the same group. The brand’s catalogue, as listed on the BGaming developer pages, features the kind of mid-variance video slots that the offshore market sells to a low-volatility-curious reader. Dama N.V. is one of the more-cited operators in the ACMA’s enforcement record: two more of its brands (Woo Casino, Spirit Casino) appear separately on this list.

3. Woo Casino — warned March 2025

The ACMA issued a further formal warning to Dama N.V. over Woo Casino in March 2025, then over Spirit Casino in May 2025. Woo sits inside the Dama cluster as the older of the two, having been on the market long enough that affiliate pages still rank it on category lists. The legal status has not changed.

4. Spirit Casino — warned May 2025

Spirit Casino is the second of the two Dama brands warned over in 2025. The pattern is consistent: a brand under Dama N.V. opens, runs marketing, surfaces on an affiliate list, then surfaces again on an ACMA formal-warning page. The cycle from warning to warning has been shrinking.

5. National Casino — warned July 2025

In July 2025 the ACMA issued a formal warning to Consolutetish S.R.L. over National Casino. Consolutetish also surfaced over Bizzo Casino in the same round. Wikipedia’s gambling-in-Australia entry lists National Casino among the brands the ACMA has acted against, which is the only places the brand appears outside its own marketing.

6. Bizzo Casino — warned July 2025 (and 2022)

Bizzo Casino carries two ACMA actions. The earlier warning, in 2022, was issued to TechSolutions (CY) Group Limited and TechSolutions Group N.V. The July 2025 warning sits with Consolutetish S.R.L. The shift in operator name is the pattern: an offshore operator reaches the ACMA’s warning register, the operator closes or rebrands, and the brand itself continues under a new shell.

7. Ignition Casino — warned July 2025

In the same July 2025 round the ACMA warned Bamboo Media over Ignition Casino. Ignition’s brand identity in the offshore market is the poker room and the casino attached to it; the warning, like the others in this list, names the operator offering prohibited services to Australians.

8. Instant Casino — warned February 2025

The ACMA’s February 2025 warning named EOD Code SRL over Instant Casino. The brand sits in the same instant-withdrawal-marketing cluster as several other offshore names; the legal position is the same.

9. Jackbit — warned April 2026

In April 2026 the ACMA issued a formal warning to Ryker B.V. over Jackbit and CasinOK in the same notice. The two-branding pattern (Jackbit for the casino, CasinOK for the sportsbook, or similar splits) recurs across the offshore sector and is one of the routes by which an action over a casino name covers a wider operator footprint.

10. Casino Intense — warned April 2025

The ACMA issued a formal warning to Sterplay Holding Ltd over Casino Intense in April 2025. The brand carries an offshore-licence footprint referenced in passing across industry coverage including the ABC and the ACMA’s own pages; the legal posture for Australians is the one this page repeats for every brand in the list.

11. Sky Crown — warned September 2022

The earliest ACMA action on this list is the formal warning issued to Hollycorn N.V. over Sky Crown and Blue Leo. The PDF on the ACMA’s website dates to September 2022, and the brand has continued to market to Australian readers since. A warning is the formal step that precedes blocking under the Interactive Gambling Act; the warning itself carries no financial penalty, and the ACMA’s enforcement register is the document that lets a reader see whether a brand sits on the list.

The shared verdict

Every brand above is operating outside Australian law. The fact that an offshore licence exists somewhere on the corporate page does not change that. The fact that a brand pays out to readers in other jurisdictions does not change that. The fact that affiliate review sites rank the brand does not change that. What changes the legal posture is an Australian licence for online casino games, and no state or territory issues one.

Brand ACMA action and date Operator named by the ACMA Subject support
RocketPlay Formal warning, March 2026 (also May 2022 under Dama N.V.) Pulsup Ltd (2026); Dama N.V. (2022) —
Level Up Casino Formal warning, May 2022 Dama N.V. BGaming developer listings
Woo Casino Formal warning, March 2025 Dama N.V. —
Spirit Casino Formal warning, May 2025 Dama N.V. —
National Casino Formal warning, July 2025 Consolutetish S.R.L. Industry listings (Wikipedia)
Bizzo Casino Formal warning, July 2025 (also 2022) Consolutetish S.R.L. (2025); TechSolutions (2022) —
Ignition Casino Formal warning, July 2025 Bamboo Media —
Instant Casino Formal warning, February 2025 EOD Code SRL —
Jackbit Formal warning, April 2026 Ryker B.V. —
Casino Intense Formal warning, April 2025 Sterplay Holding Ltd Industry coverage (ABC, ACMA, Crown Melbourne)
Sky Crown Formal warning, September 2022 Hollycorn N.V. —

The cells in the table are deliberate. The ACMA column is the one that matters for an Australian reader, and every brand has a date and operator name to attach to it. The subject-support column is left blank where the offshore sector has no Australian-facing presence to map; where it does, the listings that report it are named without being treated as a recommendation.

The Interactive Gambling Act 2001 (IGA), strengthened by the Interactive Gambling Amendment Act 2017, makes it an offence to provide online casino games, online pokies or in-play betting to a person in Australia. The Act targets the provider, not the player — no Australian has been prosecuted for placing a bet through an offshore site — but the prohibition is the reason no Australian-licensed shortlist of online casinos exists for low volatility slots, and the reason no review site that ranks offshore brands is doing the reader a favour when it does.

A smartphone screen showing a plain government warning notice about a blocked website, held against a blurred background.
In February 2025 the ACMA issued a formal warning to EOD Code SRL over Instant Casino.

What is licensed in Australia. Wagering on races and sport placed before the event, lotteries, and keno — in practice licensed by the Northern Territory. The Northern Territory Racing and Wagering Commission regulates 52 of Australia’s online bookmakers, including Sportsbet, Bet365 and Ladbrokes, licensed in the Territory for tax reasons; the commission has no full-time staff and meets once a month in Darwin. The minimum age is 18 across every licensed product.

The ACMA’s enforcement record. The ACMA investigates, issues formal warnings, and directs Australian internet service providers to block illegal sites. By June 2026, 1,751 illegal gambling and affiliate marketing websites had been blocked since the first blocking request in November 2019 — a run of more than six years of cumulative enforcement, with the blocking list accelerating after the 2017 amendments took full effect. The June 2026 round alone added 12 more: 7Signs, ChromaBet, Donbet, Duospin, Freshbet, Slots Gem, Jacks Club, Lucky Start, Pointsbetz.com, Spinrise, Vinyl Casino, and Wildsino. More than 230 unlicensed gambling services have left the Australian market since 2017 — not because they were blocked out, but because the cost of marketing to Australians under ACMA scrutiny became uneconomic.

The blocking rate, in plain terms. The arithmetic the page offers is the rate of blocking over the period since the first blocking request in November 2019 to the June 2026 total of 1,751 sites — a band of roughly 260 to 290 sites a year on average over the period, with the rate accelerating in the post-2022 rounds and the June 2026 round alone adding 12. The condition behind the band: it is a count of distinct domains blocked under section 313 of the Telecommunications Act 1997, not a count of brands, and a single brand under multiple shells will appear multiple times. The number a reader should keep is the direction of travel — the blocking list is longer now than at any point in the Act’s history, and the rate has not slowed.

The cost to the player from illegal sites. H2 Gambling Capital’s 2025 report estimates Australians lose about A$3.9 billion a year to illegal gambling sites, and the share of gambling going through legal channels fell from 74 per cent in 2021 to 64 per cent. The shift is the economic face of the legal posture this page describes: the prohibition has not stopped Australians from gambling, it has shifted them onto brands the ACMA cannot regulate.

The payment rules since 11 June 2024. Credit cards, credit-related products, and digital currency are banned as payment for licensed online wagering in Australia, with penalties up to A$247,500 for operators that breach the rule. Legal deposit routes for licensed wagering are debit card, bank transfer, PayID / Osko, and BPAY. A site asking an Australian reader for a credit card or a crypto deposit is operating outside the Australian rules, regardless of where the licence on the corporate page sits.

The 2026 reform that has not yet commenced. The Interactive Gambling Amendment (Gambling Reform) Bill 2026 passed Parliament on 19 August 2026. Its advertising and inducement measures commence on 1 January 2027 — law with a start date, not yet in force on a page published in 2026. The provisions are real and signed, and they will change what licensed wagering services can offer from the start date, but they do not change the underlying prohibition that has applied since 2017.

The tax position, briefly. Gambling winnings of a recreational player are not assessable income in Australia (section 6-5 of the ITAA 1997), and losses are not deductible, unless the person is carrying on a business of gambling. The position is the same for offshore winnings — the ATO looks at the activity, not the operator. A reader who is unsure whether their play crosses the line into a business should check with a registered tax agent.

What an offshore site cannot offer that an Australian-licensed venue can. An offshore site gives no Australian consumer protection, no complaints body, and no recourse if a withdrawal is refused. An offshore site can be blocked by an Australian ISP with a balance still on it. An offshore site is not bound by the credit-card and crypto ban. An offshore site is not connected to BetStop. The marketing word “trusted” that recurs across the offshore sector reads as a claim with no enforcement behind it; the marketing word “instant withdrawal” reads as a claim that is true on the day it works and false on the day it does not.

What a Reader in Australia Can Actually Do

The lawful alternatives are three, and they cover most of what an offshore reader is looking for.

Licensed pubs and clubs with pokies. The NSW, Victorian, Queensland, South Australian and ACT installed bases of 87,298, 26,380, 21,122, 11,672 and 3,587 machines respectively are the most accessible route to a low volatility-style session in Australia. The machines are venue-owned and state-regulated, the payouts are audited, and the venue is required to display the responsible-gambling help line. The choice of machine within a venue is the practical equivalent of the choice between online slot titles — and a reader who has decided to play will not find a wider local selection anywhere.

Land-based casinos. Crown Melbourne, Crown Sydney, The Star Sydney, The Star Gold Coast, and SkyCity Adelaide run the full table-game floor with house edges and rule sets published by the regulator. Crown Melbourne’s blackjack, baccarat, and craps offerings sit under the rules approved by the VGCCC; the public log of approved rule changes is the document a reader can read before sitting down. The minimum age is 18, the dress code varies, and the bankroll required is larger than the pub-pokies equivalent — but the table-game edge on a basic-strategy blackjack hand is the lowest the reader can find in any Australian venue.

BetStop for the reader who wants the spin to stop. Three months, six months, or up to five years, enforced across every Australian-licensed online and phone wagering service. The register does not touch an offshore site, which is why the register alone is not enough for a reader whose play has moved offshore — but it is enough to remove the licensed half of the equation, and the half that follows is the half a counselling service handles.

Frequently Asked Questions

What does low volatility mean for a slot machine?

Low volatility describes the shape of the bankroll curve, not the long-term cost. A low volatility slot pays out often, in small amounts, with the rare larger prize sitting well above the median. A low volatility slot still has a house edge; the edge is simply being collected in many small bites rather than a few large ones. The Australian pokies installed base — 87,298 in NSW as of mid-2023, 26,380 in Victoria in 2021-22, and similar figures in Queensland, South Australia and the ACT — gives a reader plenty of low-variance machines to choose from at a local venue.

How does low volatility differ from high volatility in slot design?

Low volatility and high volatility slots can have similar return-to-player percentages over millions of spins, but the path a player’s bankroll takes between two spins is wider in the high volatility design. A low volatility slot produces more frequent small wins and a flatter curve. A high volatility slot produces longer quiet stretches and a single large payout when the bonus lands. Across a session of similar length, the long-run cost to the player is closer between the two designs than the marketing makes it sound — the difference is the path, not the destination.

Is it legal to play low volatility slots at an online casino from Australia?

No. The Interactive Gambling Act 2001, strengthened by the Interactive Gambling Amendment Act 2017, makes it an offence to provide online casino games or online pokies to a person in Australia. No Australian state or territory issues a licence for them. The ACMA targets the provider, not the player, but a balance sitting with an offshore site sits outside the Australian legal frame entirely. The lawful alternatives are licensed pubs and clubs with pokies, land-based casinos, and the BetStop self-exclusion register for anyone who wants to stop.

Are low volatility pokies-style machines common in Australian pubs and clubs?

Yes, and the installed base is the largest per-capita of any comparable market outside the United States. As of mid-2023 NSW operated 87,298 pokies-style machines outside casinos, Victoria 26,380 in 2021-22, Queensland 21,122 in October 2023, South Australia 11,672 in September 2023 and the ACT 3,587 in November 2023. Australia as a whole ran an estimated 97,103 gaming machines outside casinos by 2010 — about five times the United States per-capita rate. The choice within a single venue is wide enough that a low-volatility-curious reader will find a match without leaving the building.

Where can someone see how many pokies machines operate in their state?

State and territory gaming regulators publish the figures. NSW publishes the count of gaming machines per venue and per LGA through Liquor & Gaming NSW; Victoria publishes the equivalent through the Victorian Gambling and Casino Control Commission; Queensland through the Office of Liquor and Gaming Regulation; South Australia through Consumer and Business Services; and the ACT through the ACT Gambling and Racing Commission. The Wikipedia entry on Gambling in Australia, updated regularly, is a useful cross-reference for readers who want all five figures in one place.

Does volatility affect how often a slot machine pays out, not just how much?

Yes. Volatility is the variance around the average outcome, which means it controls both the frequency and the size of the payouts. A low volatility machine pays more often in smaller amounts; a high volatility machine pays less often in larger amounts. The total return-to-player percentage is set independently of volatility and is the figure that holds over the long run — which is why two machines can advertise the same RTP and feel completely different across a session. Australian regulation does not publish a national RTP floor the way some US states do, so the relevant figure is the one printed on the help screen of the specific machine.