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Lesson 2 of 7 · 15 min

The Dual-Currency Model in Detail

Gold coins, sweeps coins, the free entry route, playthrough and redemption. Why the purchase is the whole economy and which mechanics vary between operators.

Fact-checked 23 September 2026 by iGaming Times editorial team · 9 sources

In this lesson

  • Describe the two currencies, how each is obtained and what each can do
  • Explain the alternative method of entry and why its genuineness is the legal test
  • Trace a $20 purchase through gold coins, sweeps coins, playthrough and redemption
  • List the mechanics that vary between operators and say which affect margin and which affect legal risk

Two balances

Every sweepstakes casino account has two balances, and the model is the relationship between them.

Gold coins are the product. They are sold in packages at a range of price points, they are given free on sign-up and at regular intervals when the player logs in, and they are played on every game in the lobby. They have no cash value. Chumba Casino's terms (version 22.0, December 2025) are typical: gold coins have no monetary value and cannot under any circumstance be redeemed for prizes, purchases are final and non-refundable, and coins cannot be transferred between accounts. A player who only ever plays gold coins is a social casino customer.

Sweeps coins are the promotion. They are never sold: Chumba's terms say, in capitals, YOU CANNOT PURCHASE SWEEPS COINS. They are given free: as a bonus alongside a gold coin purchase, as a daily login reward, through social media giveaways, and on written request, traditionally by post and, at some operators, now online. They are played on the same games, usually through a toggle that switches the game between the two currencies. Winnings in sweeps coins can be redeemed for cash prizes, typically at one sweeps coin to one dollar (at Chumba, each sweeps coin won in play is redeemable for a prize worth US$1), once the coins have been played through at least once and the player has passed identity verification.

The player's experience is that a gold coin package, say $20, comes with free sweeps coins, say 20, that the sweeps coins are the ones worth playing, and that a good session ends with a cash redemption. The operator's legal position is that the player bought a product, gold coins, and received a free entry into a sweepstakes as a promotion for that product, and that the prize was won in the sweepstakes rather than by wagering.

The free entry route

The mechanism that carries the legal theory is the alternative method of entry, which the industry calls AMOE. State law treats a scheme that combines a prize, chance and consideration as a lottery; California's Penal Code, for example, defines a lottery as the distribution of property by chance among people who have paid valuable consideration for the chance. A promotional sweepstakes stays lawful by removing one of the three elements, and because the prize and the chance are the whole point, it removes consideration: it must be open to entrants who do not buy anything. Otherwise the purchase is consideration and the sweepstakes is a lottery, which is gambling. Every sweepstakes casino therefore offers a way to obtain sweeps coins without purchase.

The traditional route is postal: the player writes a request, by hand, with specified details, on a card of a specified size, to a postal address, and receives a small number of sweeps coins per request. Chumba's sweeps rules (version 8.0, December 2023) showed the form: a handwritten 4 by 6 inch card carrying a one-time code from the player's account, one card per envelope, for 5 sweeps coins per request. The route is moving online. Chumba's current rules (version 26.0, July 2026) replace the envelope with an online entry request: the player handwrites wording from an on-screen template on a 4 by 6 inch card, photographs it, may be asked for a selfie check, and receives 5 sweeps coins per valid request. Operators also count daily login bonuses, social media contests and first-time sign-up grants as free routes.

Whether the free route is genuine is the point on which the legal theory is most often tested. A postal route that takes weeks to fulfil, yields a trivial number of coins and is buried in the terms is, on one view, compliant and, on another, a fig leaf designed to ensure that no meaningful proportion of play is ever free. Promotions lawyers put the test as equal opportunity: if paying entrants can obtain more chances to win than free entrants, regulators will likely treat the purchase as consideration. Legislation has increasingly stopped asking the question. California's AB 831, signed in October 2025, treats a coin given free that can be exchanged for a prize as "indirect consideration" and makes it a misdemeanour to offer an online sweepstakes game that uses a dual-currency system to simulate casino games and award cash, and New York's ban on dual-currency sweepstakes casinos, signed in December 2025, applies regardless of any no purchase necessary route. Chumba's current rules exclude both states, among 16, from its sweepstakes.

Playthrough and redemption

A sweeps coin cannot be redeemed the moment it is received. Terms require that it be played at least once, sometimes more, before it becomes redeemable, and that the player's redeemable balance reach a minimum before a redemption request is accepted. Chumba's terms, for example, allow the operator to require up to 20 plays and to set a minimum redemption threshold of 100 sweeps coins; thresholds vary by operator and by prize type. The playthrough serves two purposes: it prevents a player from claiming free coins and immediately cashing them out, and it ensures that the operator's return on every sweeps coin is at least one game's worth of house edge.

Redemption is a cash prize, not a withdrawal, and the distinction is maintained throughout: the player "redeems" coins for a "prize" that is "fulfilled" by gift card or bank transfer, and Chumba's terms allow up to ten business days for a cash prize to be paid, with possible further delays for identity verification. Before the first redemption the player completes identity verification, which is where the model's compliance weight sits, because an operator that sends cash prizes to unverified accounts has no defence against money laundering exposure or underage play. Lesson six returns to this.

The purchase is the whole economy

Follow the money for a $20 purchase. The player receives, say, 200,000 gold coins and 20 sweeps coins. The gold coins are consumed in play and produce nothing. The 20 sweeps coins are played through the games at their configured return, say 95 per cent, and what survives is redeemed. Over a large population, roughly 19 sweeps coins' worth of value returns to players and one is retained; but the player also spent $20, so the operator's revenue from the transaction is $20 less the cost of the sweeps coins it gave away, less payment costs.

Two things follow. First, the operator's margin is not the game's house edge; it is the gap between the price of the package and the sweeps coins bundled with it, adjusted for how much of the bundle is eventually redeemed. Operators tune that ratio, and it is why two sweepstakes casinos with the same games and the same RTP can have completely different economics. Second, gold coin play is a cost centre that produces engagement rather than revenue; its job is to keep players in the lobby long enough to buy again.

Lesson four builds the full unit economics. The point here is structural: the product is the sale of a package, the sweepstakes is the promotion, and the games are where both are consumed.

The mechanics that vary

Across the segment the model is the same and the details are not.

Sweeps coin ratio. How many sweeps coins accompany a gold coin purchase. Chumba's rules say only that the number for each relevant gold coin purchase is stated in the purchase window; operators set it pack by pack, promotions push it higher, and a higher ratio is a lower margin.

Daily free coins. A daily login bonus of sweeps coins, claimable once a day at Chumba, where the daily clock resets every 24 hours, is the free route that asks least of the player and the one that keeps casual players active without spending.

Playthrough multiplier. One times is the default in Chumba's terms, which reserve the right to require up to 20; a higher multiplier is worse for the player and increases the operator's retained share.

Redemption minimum and speed. A low minimum and fast fulfilment are competitive advantages; a high minimum and slow fulfilment are a cash-flow lever and a customer-complaint generator.

Currency toggle. Whether the player switches currencies per game or per session, and how prominently sweeps play is presented. A lobby in which the sweeps toggle is the default and the gold coin mode is an afterthought weakens the claim that gold coins are the product.

Product scope. Slots and table games are universal. Sweepstakes poker, bingo and sports betting exist and stretch the model: a sports contest resolved by real games is harder to describe as a promotional sweepstakes than a slot spin, and it has attracted specific enforcement: in August 2025 the Arizona Department of Gaming ordered Fliff and Thrillzz, which it called event wagering sportsbooks, to stop operating in the state.

Variants and near relatives

Skill-game cabinets in convenience stores and bars use a different legal theory, that the outcome depends on player skill, and have their own legislative fights. Fish tables and social sportsbooks overlap the space. Sweepstakes sports and poker are the sweepstakes model applied to products where the promotional sweepstakes claim is weakest. Prize-linked promotions attached to genuine consumer products, the fast-food scratchcard, are the model's legal ancestor and its best defence: the new state bans expressly leave them alone, California's AB 831 exempting promotions run "on a limited and occasional basis" that are "incidental to substantial bona fide sales of consumer products or services", and the operators' case is that they are doing the same thing with a digital good. The exemption also shows where that case is weakest: a sweepstakes casino's promotion is not incidental to its sales.

What to take from this lesson

The dual-currency model sells gold coins, gives sweeps coins free, requires a free entry route, imposes a playthrough and pays cash prizes on redemption after identity verification. The operator's economics are the gap between the package price and the sweeps coins bundled with it, not the house edge. Under sweepstakes law, every legal test of the model is a test of whether the free route is real and the purchase is genuinely for the gold coins, although the newest state bans, in California and New York, prohibit the model without asking that question. Every regulatory concern is about the point at which cash leaves the operator: redemption, and the verification that precedes it.

Key terms

Gold coins
The virtual currency that is sold. No cash value, not redeemable or transferable. A player who plays only gold coins is a social casino customer.
Sweeps coins
The virtual currency that is never sold, is given free with purchases and through free routes, and whose winnings are redeemable for cash prizes at a fixed rate.
Alternative method of entry
The no-purchase route to sweeps coins required by sweepstakes law, traditionally a handwritten postal request in a prescribed format, one request per envelope; some operators, Chumba among them, now take the handwritten request as an online upload. Its genuineness is the legal test under sweepstakes law, although California and New York now ban the dual-currency model regardless of it.
Playthrough
The requirement that sweeps coins be wagered at least once, and at some operators' discretion up to 20 times, before becoming redeemable. Prevents claim-and-cash-out and guarantees at least one game's house edge.
Redemption
The exchange of redeemable sweeps coins for a cash prize, subject to a minimum balance and identity verification. The point at which cash leaves the operator.

Key takeaways

  • Gold coins are the product and are sold; sweeps coins are the promotion and are only ever given free. The legal claim rests on that distinction.
  • The free entry route (post, daily bonus, giveaways) is what removes consideration. A nominal route is the point on which the model is most often tested.
  • A sweeps coin must be played through before redemption; redemption is a cash prize after identity verification, not a withdrawal.
  • The operator's margin is the gap between the package price and the bundled sweeps coins, adjusted for realised redemption, not the house edge.
  • Sweepstakes sports and poker stretch the model: a real game or another player is harder to describe as a promotional sweepstakes than a slot spin.

Sources

The legislation, regulator material and research this lesson was checked against.

  1. AB 831, Gambling: operation of a contest or sweepstakes (Chapter 623, Statutes of 2025), California Legislature, accessed 2026-09-23
  2. California Penal Code section 319: lottery defined, California Legislature, accessed 2026-09-23
  3. Senator Addabbo sweepstakes bill signed into law (S.5935A, Chapter 605), New York State Senate, accessed 2026-09-23
  4. Chumba Casino Sweeps Rules, version 26.0 (13 July 2026), VGW Games Limited, accessed 2026-09-23
  5. Chumba Casino Sweeps Rules, version 8.0 (15 December 2023), VGW Games Limited, accessed 2026-09-23
  6. Chumba Casino Terms and Conditions, version 22.0 (30 December 2025), VGW Games Limited, accessed 2026-09-23
  7. What constitutes a legal sweepstakes?, Klein Moynihan Turco, accessed 2026-09-23
  8. New York enacts law prohibiting sweepstakes casinos, Reed Smith, accessed 2026-09-23
  9. Arizona Department of Gaming continues enforcement against unlicensed and unregulated gaming operators (ADG news release, 15 August 2025), Arizona Indian Gaming Association, accessed 2026-09-23

Check your understanding

4 questions · answer them all, then check.

  1. 1. Why are sweeps coins never sold?

  2. 2. A player buys a $20 package with 20 sweeps coins at 95 per cent RTP and a one-times playthrough. What is the operator's revenue on the transaction?

  3. 3. Which mechanic, if weak, most directly undermines the legal design?

  4. 4. Why has enforcement been quickest against sweepstakes sports and poker?

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